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Vita


Guifu Zhang


University of Oklahoma
School of Meteorology
120 David L. Boren Blvd., Suite 5900
Norman, OK 73072-7307
Ph: (405)325-3507 Fax: (405)325-7689
E-mail: guzhang1@ou.edu

Education:


01/96 - 07/98 Ph.D. University of Washington, Seattle, WA (Electrical Engineering)
Dissertation: Detection and Imaging of Targets in the Presence of Clutter Using Angular Correlation Function
09/82 - 07/85 M.S. Wuhan University, P.R. China (Radio Physics)
09/78 - 07/82 B.S. Anhui University, P.R.China (Physics)

Professional Experience:

Chronological

2005.7 - Associate Professor, University of Oklahoma/School of Meteorology, USA
2004.7 - 2005.7 Scientist II, National Center for Atmosphere Research, USA
2001 - 2004 Scientist I, National Center for Atmosphere Research, USA
1999 - 2000 Project Scientist I, National Center for Atmosphere Research, USA
1998 - 1999 Visitor, National Center for Atmosphere Research, USA
1996 - 1998 Research Assistant, Dept. of EE, University of Washington, Seattle, USA
1993 - 1995 Visiting Scientist, Dept. of EE, University of Washington, Seattle, USA
1990 - 1993 Associate Professor, Space Physics Dept., Wuhan University, P.R.China
1989 - 1990 Visiting Scholar, Communication Research Laboratory, Japan
1985 - 1989 Instructor, Space Physics Dept., Wuhan University, P.R. China

Current Research Interests

Teaching Activities

Memberships and Awards

Professional Service

Publications:

Refereed Publications

  1. Li, Y., G. Zhang, and R.J. Doviak, 2010: A new approach to detect ground clutter in weather radar observations, J. Atmos. Ocean. Tech.. to be submitted.
  2. Lei, L., G. Zhang, R. J. Doviak, R. D. Palmer, B. L. Cheong, M. Xue, 2010: A multi-lag correlation estimator for polarimetric radar variables in the presence of noise, Radio Science., to be submitted.
  3. Wen, Y., Y. Hong, G. Zhang, T. Schuur. J. Gourley, Z. Flaming, R. Morris and Q. Cao, 2010: Cross validation of space-borne radar and ground polarimetric radar aided by polarimetric echo classification of hydrometeor type, J. Appl. Meteor. Climat. Submitted.
  4. Bukovcic, P., D. S. Zrnic, and G. Zhang, 2010: A winter storm transition revealed with polarimetric radar and 2DVD observations, Geoscience and Remote Sensing Letters, Submitted.
  5. Palmer, R.D., D. Bodine, M. Kumjian, B. Cheong, G. Zhang, Q. Cao, H. Bluestain, A. Ryzhkov, T. Yu, and Y. Wang, 2010: The 10 May 2010 tornado outbreak in central Oklahoma: Potential for new science with high-resolution polarimetric radar, Bull. Amer. Meteor. Soc., submitted.
  6. Cao, Q., M. Yeary, and G. Zhang, 2010: Efficient ways of learning weather radar polarimetry, IEEE Trans. on Education, Submitted.
  7. Doviak, R. J., L. Lei, G. Zhang, J. Meier, and C. Curtis, 2010: Comparing theory and measurements of cross-polar fields emitted a phased array antenna, IEEE Trans. on Geoscience and Remote Sensing, Submitted.
  8. Zhang, G., R.J. Doviak, D.S. Zrnic, R.D. Palmer, L. Lei, and Y. Al-Rashid, Ploarimetric Phased Array Radar for Weather Measurement: A Planar or CylindricalConfiguration?, J. Atmos. Ocean. Tech, Submitted, March 2010.
  9. Zrnic D. S., G. Zhang, R.J. Doviak, Bias Correction and Doppler Measurement for Ploarimetric Phased Array Radar, IEEE Trans. on Geoscience and Remote Sensing, Submitted, March 2010.
  10. Zhang, G., Y. Li, R.J. Doviak, D. Priegnitz, J. Carter, and C. Curtis,Multi-pattern Measurements for the Phased Array Radar Calibration and Sidelobe Echo Mitigation, J. Atmos. Ocean. Tech, revision,Submitted in August 2009.
  11. Zhang, G., S. Luchs, A. Ryzhkov, M. Xue, L. Ryzhkova, and Q. Cao, Winter Precipitation Microphysics Characterized by Polarimetric Radar and Video Disdrometer Observations in Central Oklahoma, J. Appl. Meteor. Climat., Submitted, July 2009.
  12. Zrnic, D., R. J. Doviak, and G. Zhang, and A. Ryzhkov, 2010: Bias in differential reflectivity due to cross coupling in the simultaneous horizontal/vertical polarization mode, J. Appl. Meteor. Climat, Accepted.
  13. Snyder, J. C., H. B. Bluestein, G. Zhang, S. J. Frasier, 2010: Attenuation Correction and Hydrometeor Classification of High-Resolution, X-band, Dual-Polarized Mobile Radar Measurements in Severe Convective Storms, J. Atmos. Ocean. Tech, Accepted.
  14. Zrnic, D., G. Zhang, V. Melnikov, J. Andric, 2010: Three body scattering and hail size, J. Appl. Meteor. Climat., 49(4), 687-700.
  15. Cao, Q., G. Zhang, E. Brandes, and T. Schuur, 2010: Polarimetric Radar Rain Estimation through Retrieval of Drop Size Distribution Using a Bayesian Approach, J. Appl. Meteor. Climat., 43(5), 973-990.
  16. Xue, M., Y. Jung, and G. Zhang, 2010: State estimation of convective storms with a two-moment microphysics scheme and ensemble Kalman filter: Experiments with simulated radar data Q. J. Roy. Meteor. Soc, 136(684), 685-700.
  17. Jung, Y., M. Xue, and G. Zhang, 2010: Polarimetric Radar Signatures of a Simulated Supercell Storm Using a Two-Moment Microphysics Scheme and Polarimetric Radar Emulator. J. Appl. Meteor. Climat., 49, 146-163.
  18. Yeary, M., T.Y. Yu, R. Palmer, H. Monroy, I. Ruin, G. Zhang, P. Chilson, M. Biggerstaff, G. Weiss, K. Mitchell, and L. D. Fink, Working together for better student learning: A multi-university, multi-federal partner program for asynchronous learning module development for radar based remote sensing systems, IEEE Trans. on Education, Submitted, 2008
  19. Plamer, R.D., M. Biggerstaff, P. Chilson, J. Crain, K. Droegemeier, Y. Hong, M. Yeary, T. Yu, G. Zhang, Y. Zhang, 2009: Weather Radar Education at the University of Oklahoma: An Integrated interdisciplinary approach, Bull. Amer. Meteor. Soc., 90(9), 1277-1282.
  20. Le, K. D., R. D. Palmer, B. L. Cheong, T.-Y. Yu, G. Zhang, and S. M. Torres, 2009: Reducing the Effects of Noise on Atmospheric Imaging Radars Using Multi-Lag Correlation, Radio Science, 47(1), 272-284.
  21. Jung, Y., M. Xue, and G. Zhang, 2010: The estimation of microphysical parameters and atmospheric state using simulated polarimetric radar data and ensemble Kalman filter in the presence of observation operator error. Mon. Wea. Rev., 138, 539-562.
  22. Zhang, Y., A. Huston, M. Mallo and G. Zhang, 2010: A Scatterometer System for Laboratory Study of Polarimetric Electromagnetic Signatures of Icy Hydrometeors,, IEEE on IM, 59(3), 671-681.
  23. Zhang, G., R. J. Doviak, D. S. Zrnic, J. E. Crain, D. Staiman and Y. Al-Rashid, Phased Array Radar Polarimetry for Weather Sensing: A Theoretical Formulation for Bias Corrections, IEEE Trans. on Geoscience and Remote Sensing, 47(11), 3679-3689, 2009.
  24. Xue, M., M. Tong, and G. Zhang, 2009: Attenuation correction and direct assimilation of attenuated radar reflectivity data using ensemble Kalman filter: Tests with simulated data, Quart. J. Royal Meteor. Soc., 135, 1409-1423.
  25. Cao, Q., and G. Zhang, Errors in Estimating Raindrop Size Distribution Parameters: A Study based on Simulation and Real Data, J. Appl. Meteor. Climat, 48(3), 406-425, 2009.
  26. Zhang, G., M. Xue, Q. Cao, and D. Dawson, Diagnosing the intercept parameter for exponential raindrop size distribution based on video disdrometer observations: Model development, J. Appl. Meteor. Climat, 47(11) 2983-2992, 2008.
  27. Zhang, G., and R. J. Doviak, Spaced antenna interferometry to detect and locate subvolume inhomogeneities of reflectivity: an analogy with monopulse radar, J. Atmos. Ocean. Tech., 25(11), 1921-1938, 2008.
  28. Le, K. D., R. D. Palmer, B. L. Cheong, T.-Y. Yu, G. Zhang, and S. M. Torres, On the use of auxiliary receive channels for clutter mitigation with phased array weather radars, IEEE Transactions on Geoscience and Remote Sensing, 47(1), 272-284, 2008.
  29. Jung, Y., G. Zhang, and M. Xue, Assimilation of simulated polarimetric radar data for a convective storm using ensemble Kalman filter. Part I: Observation operators for reflectivity and polarimetric variables, Mon. Wea. Rev., 136, 2228–2245, 2008.
  30. Jung, Y., M. Xue, G. Zhang, and J. Straka, Assimilation of simulated polarimetric radar data for a convective storm using ensemble Kalman filter. Part II: Impact of polarimetric data on storm analysis, Mon. Wea. Rev., 136, 2246–2260, 2008.
  31. Cao, Q., G. Zhang, E. Brandes, T. Schuur, A. Ryzhkov, and K. Ikeda: Analysis of video disdrometer and polarimetric radar data to characterize rain microphysics in Oklahoma, J. Appl. Meteor. Climat. In press, 2008.
  32. Xue, M., Y. Jung, and G. Zhang, Error modeling of simulated reflectivity observations for ensemble Kalman filter data assimilation of convective storms, Geophys. Res. Letters, 34, L10802, doi:10.1029/2007GL029945, 2007.
  33. Zhang, G., and R.J. Doviak: Spaced antenna interferometry to measure crossbeam wind, shear, and turbulence: Theory and formulation, J. Atmos. Ocean. Tech., 24(5), 791-805, 2007.
  34. Brandes, E. A., K. Ikeda, G. Zhang, M. Schönhuber, and R. M. Rasmussen, A statistical and physical description of hydrometeor distributions in colorado snowstorms using a video disdrometer, Accepted and to appear in J. Appl. Meteor. Climat., 46(5), 634-650, 2007.
  35. Zhang, G., J. Sun, and E. A. Brandes, Improving parameterization of rain microphysics with disdrometer and radar observations, J. Atmos. Sci., 63 (4): 1273-1290, 2006.
  36. Brandes, E. A., G. Zhang, and J. Sun, On the influence of assumed drop size distribution form on radar-retrieved thunderstorm microphysics, J. Appl. Meteor., 45(2): 259-268, 2006.
  37. Yu, T., G. Zhang, A. B. Chalamalasetti, R. J. Doviak, and D. Zrnic, Resolution enhancement using range oversampling, J. Atmos. Ocean. Tech., 23(2): 228-240, 2006.
  38. Zhang, G., T. Yu, and R. J. Doviak, Angular and range interferometry to refine weather radar resolution, Radio Science, vol. 40, RS3013, doi:10.1029/2004RS003125, 2005.
  39. Zhang, G., R. Doviak, J. Vivekanandan, W. Brown, and S. A. Cohn, Performance of correlation estimators for spaced antenna wind measurement in the presence of noise, Radio Science, vol. 39, RS3017, doi:10.29/2003RS003022, 2004.
  40. Doviak, R. J., G. Zhang, S. A. Cohn, and W. Brown, Comparison of spaced-antenna wind estimators: Theoretical and simulation results, Radio Science, vol. 39(1), Art. No. 1006, 2004.
  41. Brandes, E., G. Zhang, and J. Vivekanandan, Comparison of polarimetric radar drop size distribution retrieval algorithm, J. Atmos. Ocean. Tech., vol. 21(4), pp. 576-590, 2004.
  42. Brandes, E., G. Zhang, and J. Vivekanandan, Drop size distribution retrieval with polarimetric radar: model and application, J. Appl. Meteor., vol. 43(3), pp 461-675, 2004.
  43. Vivekanandan, J., G. Zhang, and E. Brandes, Polarimetric Radar Rain Estimators Based on Constrained Gamma Drop Size Distribution Model, J. Appl. Meteor., vol. 43(2), pp 217-230, 2004.
  44. Zhang, G., R. Doviak, J. Vivekanandan, and T. Yu, Angular and range interferometry to measure wind, Radio Science, vol. 38 (6): Art. No. 1106, 2003.
  45. Brandes, E., G. Zhang, and J. Vivekanandan, An evaluation of a drop distribution-based rainfall estimator, J. Appl. Meteor., vol. 42, pp. 652-660, 2003.
  46. Vivekanandan, J., G. Zhang, and S.M. Ellis, Radar reflectivity calibration using differential propagation phase measurement, Radio Science, vol. 38(3), 8050, doi:10.1029/2002RS002673, 2003.
  47. Zhang, G., R. Doviak, J. Vivekanandan, W. Brown, and S. A. Cohn, Cross-correlation ratio method to estimate cross beam wind and comparison with the full correlation analysis, Radio Science, vol. 38(3), Art. No. 8052, doi:10.1029/2002RS002682, 2003.
  48. Zhang, G., J. Vivekanandan, E.A. Brandes, R. Meneghini, and T. Kozu, The shape-slope relation in Gamma raindrop size distribution: statistical error or useful information?, J. Atmos. Ocean. Tech., vol. 20, pp. 1106-1119, 2003.
  49. Brandes, E., G. Zhang, and J. Vivekanandan, Experiments in rainfall estimation with a polarimetric radar in a subtropical environment, J. Atmos. Meteor., 41., pp. 674-685, 2002.
  50. Zhang, G., J. Vivekanandan, and E. Brandes, Effects of random inhomogeneity on radar measurements and rain rate estimation, IEEE Trans. on Geoscience and Remote Sensing, vol. 40, pp 223-227, 2002.
  51. Vivekanandan, J., G. Zhang, M. K. Politovich, An assessment of droplet size and liquid water content using dual-frequency radar measurements for aircraft icing detection, J. Atmos. Oceanic. Technol., vol. 18, pp 1787-1798, 2001.
  52. Zhang, G., J. Vivekanandan, and E. Brandes, A method for estimating rain rate and drop size Distribution from polarimetric radar measurements, IEEE Trans. on Geoscience and Remote Sensing, vol. 39, pp. 831-841, 2001.
  53. Vivekanandan, J., B. Martner, M.K. Politovich, and G. Zhang, Retrieval of Atmospheric Liquid and Ice Characteristics Using Dual-Wavelength Radar Observations, IEEE Trans. on Geoscience and Remote Sensing, vol. 37, pp 2325-2334, 1999.
  54. Kuga, Y., G. Zhang, J. Yea, and A. Ishimaru, Analytical and numerical studies of angular correlation function of waves scattered from randomly distributed cylinders, Waves in Random Media, vol. 8, pp 269-281, 1998.
  55. Kuga, Y., G. Zhang, J. Yea, and A. Ishimaru, The angular correlation function of waves scattered from randomly distributed cylinders, Radio Science, vol. 33, pp 1505-1516, 1998.
  56. Zhang, G., L. Tsang, and K. Pak, Angular correlation function and scattering coefficient of electromagnetic wave scattered by a buried object under a two-dimensional rough surface, Journal of the Optical Society of America, A., vol. 15, pp 2995-3002, 1998.
  57. Zhang, G. and L. Tsang, Application of angular correlation function of clutter scattering and correlation imaging in the target detection, IEEE Trans. on Geoscience and Remote Sensing, vol. 36, pp 1485-1493, 1998.
  58. Zhang, G., L. Tsang, and Y. Kuga, Numerical studies of the Detection of Targets in Clutter by Using Angular Correlation Function and Angular Correlation Imaging, Microwave and Optical Technology Letters, vol. 17, pp 82-86, 1998.
  59. Zhang, G. and L. Tsang, Angular correlation function of wave scattering by a random rough surface and discrete scatterers and its application in the detection of a buried object, Waves in Random Media, vol.7, pp 467-478, 1997.
  60. Zhang, G., T. Tsang, and Y. Kuga, 1997:The angular correlation function of wave scattering by a buried object embedded in random discrete scatterers under a random rough surface, Microwave and Optical Technology Letters, vol. 14, pp 144-151, 1997.
  61. Zhang, G., L. Tsang, and Y. Kuga, Study of angular correlation function of scattering by random rough surface with and without a buried object, IEEE Trans. Geoscience and Remote Sensing, vol. 35, pp 444-453, 1997.
  62. Tsang, L., G. Zhang, and K. Pak, 1996: Detection of a buried object under a single random rough surface with angular correlation function in EM wave scattering, Microwave and Optical Technology Letters, vol. 11, pp 300-304, 1996.
  63. Zhang, G., L. Tsang, and Z. Chen, Collective scattering effects of Tree generated by Stochastic Lindenmayer systems, Microwave and Optical Technology Letters, vol. 11, 107-111, 1996.
  64. Chen, Z., L. Tsang, and G. Zhang, 1995: Microwave scattering by vegetation based on wave approach and stochastic Lindenmayer system, Microwave and Optical Technology Letters, vol. 8, pp 30-33, 1995.
  65. Tsang, L., K. H. Ding, G. Zhang, C. Hsu, and J. A. Kong, Backscattering enhancement of volume-surface interaction of a layer of scatterers overlying a homogeneous dielectric half space, IEEE Trans. Antenna & Propagation, vol. 43, pp 488-499, 1995.
  66. Zhang, G., J. Hou, S. Ito and T. Oguchi, Optical wave propagation in random medium composed of both turbulence and particles, Journal of Communication Research Laboratory, vol. 37(151/152), pp 43-62, 1990.

    67. Refereed Journal Publications in Chinese

  67. Huang, F., and G. Zhang, Wave beam propagation in composite random medium, Chinese Journal of Radio Science, 8(4), pp.42-50, 1993.
  68. Zhang, G. and J. Hou, The correlation and spectrum of scattered wave by a composite random medium, Journal of Wuhan University (Special issue on wave propagation), pp 72-78, 1991.
  69. Zhang, G. and J. Hou, The second moment of wave field in composite random medium, Journal of Wuhan University (Natural science edition), pp 47-56, 1990.
  70. Hou, J. and G. Zhang, Wave propagation in composite random medium, Journal of Wuhan University (Natural science edition), pp 31-38, 1989.
  71. Hou, J. and G. Zhang, A study of pulse parameter in random medium, Journal of Wuhan University (Natural science edition), pp 65-72, 1988.
  72. Zhang, G., and J. Hou, 1987, The correlativity of pulse train propagation in random medium, Chinese Journal of Radio Science, vol. 2, pp 17-25, 1987.
  73. Zhang, C., H. Li, G. Zhang, R. Huang, and R. Yan, Rain attenuation on earth-space path at 12GHz - Summary of 3 years, Journal of Wuhan University (Natural science edition), pp 45-52, 1987.

Non-refereed Journal Article

  1. Palmer, R.D., G. Zhang, M. Biggerstaff, P. B. Chilson, J. Crain, S. Torres, M. Yeary, T.Y. Yu, Y. Zhang, Atmospheric Radar Research Center – ARRC, University of Oklahoma, USA, IEEE Geoscience and Remote Sensing Society Newsletter, 2007.

Book Chapter

  1. Chen, Z., L. Tsang, and G. Zhang, Application of stochastic Lindenmayer systems to study collective and cluster scattering in microwave remote sensing of vegetation. Progress in Electromagnetics Research, EMW Publishers, Cambridge, Massacusetts, 14, 233-277, 1996

Patent Awards and Technical Reports

  1. Zhang, G., R. J. Doviak, D.S. Zrnic, and J. E. Crain, A calibration algorithm for phased array radar polarimetry, OU Intellectual Property Disclosure, 2008.
  2. Zhang, G., J. Vivekanandan, R. J. Doviak, A patent #6721678 of "Cross-correlation method for estimating 3-D wind field" by US patent office, 2003.
  3. Vivekanandan, J., and G. Zhang, A patent #6536948 of "Microwave Radar Technique for Retrieving Temperature" by US patent office, 2002.
  4. Kuga, Y., and G. Zhang, &#SAR scene images of trees generated by Lindenmayer systems," submitted to DEMACO Inc., July 31, 1996.
  5. Kuga, Y., and G. Zhang, "Light scattering from a spherical particle embedded in a SiO2 layer," submitted to KLA Instruments Corporation, May 22, 1995.

Conference Presentations/Papers

  1. Zhang, G., R.J. Doviak, D. S. Zrnic, R.D. Palmer, L. Lei, and Y. Al-Rashid, A Cylindrical Polarimetric Phased Array Radar for Weather measurement, 27th Conference on IIPS, Seattle, WA, Jan., 2011
  2. Putnam, B. J., M. Xue, G. Zhang, Y. Jung, N. Snook, and A. D. Schenkman Comparison of the structural evolution and polarimetric variable fields of a forecasted MCV using a single and two-moment microphysics scheme, 25th Conference on Severe Local Storms, 2010
  3. Cao, Q., G. Zhang, R. Palmer, Implementation of enhanced moment estimation on the C-band polarimetric research radar OU-PRIME, ERAD, 2010.
  4. Snyder, J. C., H.B. Bluestein, G. Zhang, S. J. Frasier, Attenuation correction and hydrometeor classification of polarimetric, X-band, mobile Doppler radar data in severe convective storms, ERAD, 2010
  5. Zhang, G., Q. Cao, P. Bukovcic, S. Luchs, Precipitation microphysics characterized by polarimetric radar and video disdrometer measurements, Issues with Polarimetric Phased Array Radar in Weather Measurements, 13th Cloud Physics Conference, AMS, Portland, OR, June 28 - July 2, 2010.
  6. Lei, L., G. Zhang, R. Palmer, B. Cheong, M. Xue, Performance of a multi-lag correlation estimator for polarimetric radar measurements, URSI-Natioanl Radio Science Meeting, Boulder, CO, 6-9 January, 2010.
  7. Bukovcic, P., D. Zrnic, G. Zhang, Q. Cao. Retrieval and application of raindrop size distributions from polarimetric radar data, URSI- Natioanl Radio Science Meeting, Boulder, CO, 6-9 January, 2010
  8. Berry Y. Wen, T. Schuur, G. Zhang, J.j. Gourley, Y. Hong, Cross validation of space-borne radar and ground dual-polarimetric radar, URSI-Natioanl Radio Science Meeting, Boulder, CO, 6-9 January, 2010
  9. Cao, Q., G. Zhang, Issues in variational retrieval of raindrop size distribution from polarimetric radar data, URSI-Natioanl Radio Science Meeting, Boulder, CO, 6-9 January, 2010
  10. Li, Y., G. Zhang, R. J. Doviak, A spaced-antenna simulator configuration of the National Weather Radar Testbed (NWRT), URSI-Natioanl Radio Science Meeting, Boulder, CO, 6-9 January, 2010
  11. Zhang, G., R.J. Doviak, D. S. Zrnic, J. Crain, D. Staiman, and Y. Al-Rashid, Issues with Polarimetric Phased Array Radar in Weather Measurements, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  12. Bukovcic, P., D. S. Zrnic and G. Zhang, Spatial structure and time evolution of raindrop size distributions revealed from disdrometer and polarimetric radar observations, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  13. Cao, Q., G. Zhang, R. D. Palmer, L. Lei, and B. L. Cheong, Enhanced Moment Estimation of OU-PRIME Through Advanced Signal Processing, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  14. Lei, L., G. Zhang, R. D. Palmer, B. L. Cheong, M. Xue, A multi-lag correlation estimator for polarimetric radar variables in the presence of noise, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  15. Li, Y., R. J. Doviak, G. Zhang, D. Priegnitz, C. Curtis, Preliminary results using the NWRT monopulse radar for spaced antenna interferometric measurements of weather, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  16. Mark Yeary, J. E. Crain, A. Zahrai, R. Kelley, I. Ivic, J. Meier, C. D. Curtis, Y. Zhang, R. D. Palmer, T. Y. Yu, G. Zhang, R. J. Doviak, P. B. Chilson, M. Xue, and Q. Xu, An update on the RF and digital components of the multi-channel receiver development at the National Weather Radar Testbed, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  17. Palmer, R. D., A. V. Ryzhkov, G. Zhang, B. L. Cheong, T. Y. Yu, M. B. Yeary, P. B. Chilson, M. I. Biggerstaff, N. L. Hickmon, R. J. Doviak, D. S. Zrnic, M. Knight, N. E. Lawrence, F. Sloan, OU-PRIME: A High-Resolution Platform for Interdisciplinary Radar Research and Education at the University of Oklahoma, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  18. Snyder, J., H. Bluestein, G. Zhang, and S. Frasier, Attenuation correction and hydrometeor classification using high resolution,X-band, dual-polarized mobile radar measurements in severe convective storms, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  19. Zrnic, D. S., G. Zhang, V. Melnikov, and J. Andric Three body scattering and hail size, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  20. Zrnic, D. S., R. J. Doviak and G. Zhang, Differential reflectivity bias caused by cross coupling of H, V radiation in the antenna, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  21. Bodine, D., R. Palmer, B. L. Cheong, P. L. Heinselman, D. Michaud, and G. Zhang, an High-Resolution Surface Moisture Fields Be Retrieved In Supercells? 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  22. Palmer, R.D., M. I. Biggerstaff, P. B. Chilson, G. E. Crain, K. K. Droegemeier, Y. Hong, M. Yeary, T. Y. Yu, G. Zhang, and Y. Zhang Weather radar education at the University of Oklahoma: An integrated interdisciplinary approach, 18th Education and 15th IIPS, AMS Annual Meeting, Phoenix, January, 2009
  23. Luchs, S., G. Zhang, A. V. Ryzhkov, M. Xue, L. Ryzhkova, and Q. Cao, Observations of snow particle size distribution with 2-D video disdrometer and polarimetric radar, 13rd conference on IOAS-AOLS, AMS Annual Meeting, Phoenix, January, 2009
  24. Wainwright, C. E., M. Xue, G. Zhang, and D. T. Dawson, Microphysics schemes based on DSD-parameter constraints and their impact on convective storm forecasts, JP6.5, AMS Annual Meeting, Phoenix, January, 2009.
  25. Li, Y., G. Zhang, and R. J. Doviak, Comparison of Crossbeam Wind Measurements using Spaced-Antenna and Monopulse Configurations with the National Weather Radar Testbed, 25th Conference on IIPS, AMS Annual Meeting, Phoenix, January, 2009
  26. Lei, L., G. Zhang, B.L.Cheong, R. D. Palmer, M. Xue, Simulations of Polarimetric Radar Signals Based on Numerical Weather Prediction Model Output, 25th Conference on IIPS, AMS Annual Meeting, Phoenix, January, 2009
  27. Zrnic, D. S., and G. Zhang, Polarimetric phased array radar – possibilities and challenges, 25th Conference on IIPS, AMS Annual Meeting, Phoenix, January, 2009
  28. Cao, Q., and G. Zhang, M. Xue, Variational Retrieval of Raindrop Size Distribution from Polarimetric Radar Data in presence of attenuation, 25th Conference on IIPS, AMS Annual Meeting, Phoenix, January, 2009
  29. Scipion, D. E., R. D. Palmer, P. B. Chilson, E. Fedorovich, R.J. Doviak, G. Zhang, and A. M. Botnick, Effects of convective boundary layer inhomogeneities on radar measurements of mean wind and turbulence, 25th Conference on IIPS, AMS Annual Meeting, Phoenix, January, 2009
  30. Bukovcic, P., D. Zrnic, and G. Zrnic, A study of precipitation microphysics using S- and X- band polarimetric radar measurements, 13rd Conference on IOAS, AMS Annual Meeting, Phoenix, January, 2009
  31. Luchs, S., G. Zhang, A. Ryzhkov, M. Xue, Study of snow particle size distribution based on disdrometer and polarimetric radar observations, 13rd Conference on IOAS, AMS Annual Meeting, Phoenix, January, 2009
  32. Zhang, G. Y. Li, R. J. Doviak, J. Carter, D. Priegnitz, Multi-Beam Experiment for the Phased Array Radar Calibration and Sidelobe Reduction, URSI’09, Boulder, Jan 5-8, 2009
  33. Zrnic, D. S., , G. Zhang, V. Melnikov, J. Andric, Three Body Scattering and Hail Size, URSI’09, Boulder, Jan 5-8, 2009
  34. Zhang, Y., R. Palmer, G. Zhang, K. Brews, M. Xue, T.Y. Yu, M. B. Yeary, and P.B. Chilson, “Multi-functional airborne external hazard monitoring radar with antenna diversity.” SPIE Symposium on Optical Engineering and Applications: Remote Sensing Applications for Aviation Weather Hazard Detection and Decision Support, San Diego, 10-14 August 2008.
  35. Zhang, G., R. J. Doviak, D. Zrnic, and J. Crain, “Phased array radar polarimetry for weather sensing: challenges and opportunities” IGARSS’08, Boston, July 6-11, 2008.
  36. Ryzhkov, A, G. Zhang, S. Luchs, L. Ryzhkova, “Polarimetric characteristics of snow measured by radar and 2D video disdrometer,” ERAD’08
  37. Doviak, R. J., M. Fang, V. Melnikov, and G. Zhang, “Theoretical and practical considerations in using spectrum width data,” ERAD’08
  38. Dawson, D. T. , M. Xue, J. A. Milbrandt, M.K. Yau, G. Zhang, “Analysis of Low-Level Downdraft, Cold Pool, and Tornado Behavior of Simulated Supercell Storms of the 3 May 1999 Oklahoma Tornado Outbreak with Single and Multi-Moment Microphysics,” US-China Symposium on Meteorology, Feb. 26-28, 2008
  39. Cao, Q., and G. Zhang, “A Bayesian approach to retrieve raindrop size distributions from polarimetric radar measurements,” 24rd Conference on IIPS, AMS Annual Meeting, New Orleans, LA,, January, 2008
  40. Morris, M., P. Chilson, G. Zhang, Q. Cao, R. Palmer, M. Teshiba1, L. Kanofsky1, T. Schuur and A. Ryzhkov, “Validation of Raindrop Size Distributions Retrieved from Polarimetric Radar Variables,” 24rd Conference on IIPS, AMS Annual Meeting, New Orleans, LA, January, 2008
  41. Yeary, M., R. Palmer, M. Xue, Y. Yu, G. Zhang, A. Zahrai, J. Crain, Y. Zhang, R. Doviak, Q. Xu, and P. Chilson, “Introduction to multi-channel receiver development for the realization multi-mission capabilities at the National Weather Radar Testbed,” 24rd Conference on IIPS, AMS Annual Meeting, New Orleans, LA, January, 2008
  42. Zhang, G., R. J. Doviak, C. Curtis, and Q. Cao, “Multi-patterns to Reduce Sidelobe Effects on the National Weather Radar Testbed,” Symposium on Recent Developments in Atmospheric Applications of Radar and Lidar, AMS Annual Meeting, New Orleans, LA, January, 2008
  43. Zhang, G., Q. Cao, M. Xue, P. Chilson, M. Morris, R. Palmer, J. Brotzge, T. Schuur, E. Brandes, K. Iketa, A. Ryzhkov, D. Zrnic, and E. Jessup , “A Field Experiment to Study Rain Microphysics Using Video Disdrometers, A Profiler, and Polarimetric S and X-Band Radars,” Symposium on Recent Developments in Atmospheric Applications of Radar and Lidar, AMS Annual Meeting, New Orleans, LA, January, 2008
  44. Dawson, T. D., M. Xue, J. A. Milbrandt, M. K. Yau, and G. Zhang, “Impact of multi-moment microphysics and model resolution on predicted cold pool and reflectivity intensity and structures in the Oklahoma tornadic supercell storms of 3 May 1999,” 22nd conference on WAF and 18th Conference on NWP, Utah, June 25-29, 2007
  45. Youngsun Jung, M. Xue, G. Zhang, and J. M. Straka, “Assimilation of simulated polarimetric radar data using ensemble Kalman filter: Observation operators and data impact,” 22nd conference on WAF and 18th Conference on NWP, Utah, June 25-29, 2007
  46. Zhang, G., M. Xue, D. Daniel Dawson, and Q. Cao, “Diagnosing the Intercept Parameter for Exponential Rain Drop Size Distribution Based on Video Disdrometer Observations,” 22nd conference on WAF and 18th Conference on NWP, Utah, June 25-29, 2007
  47. Zhang, G., R. J. Doviak, X. Chen, “Spaced-antenna interferometry to locate discrete objects and sub-volume inhomogeneities of reflectivity,” 33rd Radar Conference on Radar Meteorology, Australia, August 6-10, 2007
  48. Chilson, P. B., G. Zhang, T. J. Schuur, L. M. Kanofsky, M. Teshiba, Q. Cao, and M. Van Every, “Coordinated in-situ and remote sensing precipitation measurements at the Kessler Farm Field Laboratory in Central Oklahoma,” 33rd Radar Conference on Radar Meteorology, Australia, August 6-10, 2007
  49. Kanofsky, L.M., P. B. Chilson, T. J. Schuur, G. Zhang, Q. Cao, and E. A. Brandes, “Quantitative precipitation estimation and error analysis with a UHF wind profiling radar and a two-dimensional video disdrometer,” 33rd Radar Conference on Radar Meteorology, Australia, August 6-10, 2007
  50. Teshiba, M., G. Zhang, M. Xue, R. D. Palmer, and P. B. Chilson, “Assimilation of Radar-Retrieved Water Mixing Ratio with the WRF 3DVAR System,” 33rd Radar Conference on Radar Meteorology, Australia, August 6-10, 2007
  51. Le, Khoi D., R. D. Palmer, T. Y. Yu, G. Zhang, S. M. Torres, and B. L. Cheong, “Adaptive Array Processing for Multi-Mission Phased Array Radar,” 33rd Radar Conference on Radar Meteorology, Australia, August 6-10, 2007
  52. Palmer, R. D., T. Y. Yu, G. Zhang, P. B. Chilson, M. I. Biggerstaff, M. B. Yeary, S. M. Torres, J. E. Crain, and Y. Zhang, “Weather radar education at the University of Oklahoma: An integrated inter-disciplinary approach,” 33rd Radar Conference on Radar Meteorology, Australia, August 6-10, 2007
  53. Zhang, G., Q. Cao, R. J. Doviak, and D. S. Zrnic “Optimizing estimation of cross-correlation function to improve polarimetric radar measurements in the presence of noise,” IGARSS’07, Barcelona, Spain, July 23-27, 2007
  54. Zhang, G., and R. J. Doviak, “A theory for phased array weather radar to measure crossbeam wind shear and turbulence,” 23rd Conference on IIPS, AMS Annual Meeting, San Antonio, January, 2007
  55. Le, K. Le, R. D. Palmer, T. Y. Palmer, G. Zhang S. Torres, and B. Cheong, “Improving angular resolution using adaptive processing for multifunction phased array radar,” 23rd Conference on IIPS, AMS Annual Meeting, San Antonio, January, 2007
  56. Dawson, D.T., M. Xue, and G. Zhang, “High resolution simulations of the 3 May 1999 Oklahoma tornado outbreak: Impact of microphysics on cold pool intensity and storm morphology,” Severe Storms Conference, STL, 6-10 November, 2006
  57. Jung, Y., M. Xue, G. Zhang, and J. Straks, “Assimilation of simulated polarimetric radar data using ensemble Kalman filter: Observation operators and data impact,” CASA workshop, Colorado, Octocber, 2006
  58. Doviak, R. J., and G. Zhang, “Crossbeam wind measurements with phased-array Doppler weather radar, ERAD’06,Barcelona, 18-23 September, 2006
  59. Cao, Q., G. Zhang, T. Schuur, A. Ryzhkov, E. Brandes, K. Iketa, “Characterization of rain microphysics and polarimetric signatures based on disdrometer and radar observations,” IGARSS’06, Denver, 31 July – 4 August, 2006
  60. Zhang, G., and R. J. Doviak, “Weather radar interferometry to measure transverse wind, shear and turbulence,” IGARSS’06, Denver, 31 July – 4 August, 2006
  61. Brandes, E., T. J. Schuur, A. V. Ryzhkov, G. Zhang, and K. Ikeda, “Rain Microphysics Retrieval with a Polarimetric WSR-88D,” 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 October, 2005
  62. Brown, W., G. Zhang, T.-Y. Yu, and S. Cohn, “A Demonstration of a Scanning Multiple Antenna UHF Radar,” 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 October, 2005
  63. Kyoko Ikeda, E. Brandes, G. Zhang, and S. A. Rutledge, “Observations of Winter Storms with a 2-D Video Disdrometer and Polarimetric Radar,” 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 October, 2005
  64. Kanofsky, L., P. B. Chilson, T. J. Schuur, G. Zhang, and E. A. Brandes, “A comparative study of drop size distribution retrieval using two video disdrometers and a UHF wind profiling radar,” 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 October, 2005
  65. Serke, D., G. Zhang, J. Vivekanandan, T. L. Schneider, P. Minnis, and M. Poellot, “Verification of S-Polka Ka Band Radar/Radiometer LWC and RES Retrievals with GRIDS Retrievals and Aircraft Measurements and Comparison to GOES Icing Products for the WISP04 10-11 March Event,” 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 October, 2005
  66. Yu, Y. T., G. Zhang, A. Chalamalasetti, R. J. Doviak, and D. S. Zrnic, “Improve radar resolution using range oversampling,” 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 October, 2005
  67. Zhang, G., R. J. Doviak, R. Palmer, T. Y. Yu, and P. Chilson, “Bistatic Interferometry to Measure Clear Air Wind”, 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 October, 2005
  68. Zhang, G., J. Dudhia, E. Brandes, W. Wang and J. Sun, “Disdrometer and Radar Observation-Based Microphysical Parameterization to Improve Weather Forecast,” 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 Octiber, 2005
  69. Vivekanandan, J., G. Zhang, J. Willians and M. Politovich, “Detection of liquid droplet using ground-based polarization and dual-wavelength radar and radiometer,” EGU meeting, 2005
  70. Ikeda, K., E. Brandes, and G. Zhang, “Observations of winter storms with 2-D video disdrometer and polarimetric radar.” 11th ARAM, Hyannis, 4-8 October, 2004
  71. Zhang, G., J. Vivekanandan, and M. K. Politovich, “Radar/radiometer combination to retrieve cloud characteristics for icing detection” 11th ARAM, Hyannis, 4-8 October, 2004
  72. Brandes, E., and G. Zhang, “Raindrop size distribution: Characterization and retrieval from polarimetric radar measurements” THE 2004 JOINT ASSEMBLY, a partnership between CGU, AGU, SEG, and EEGS, Montreal, 17-21 May, 2004
  73. Doviak, R. J., G. Zhang, T. Yu, “Crossbeam wind measurements with a Phase Array Doppler Weather Radar-Theory” IEEE National Radar Conference, Philadelphia, 26-29 April, 2004
  74. Doviak, R. J., G. Zhang, S. Cohn, and W. Brown, “Comparison between Space Antenna and Doppler Beam Swing technique for wind measurement” URSI’04 National Radio Science Meeting, Boulder, 5-8 January, 2004
  75. Zhang, G., T. Yu, and R. J. Doviak, “Angular interferometry to sharpen beam” submitted to URSI’04 National Radio Science Meeting, Boulder, 5-8 January, 2004
  76. Brandes, E., G. Zhang, and J. Vivekanandan, “Drop size distribution retrieval from polarimetric radar measurements using the constrained-Gamma model: verification and application,” Proc. of the 31st Conference on Radar Meteorology, Seattle, 6-12 August, pp 29-32, 2003
  77. Ellis, S., C. William, E. Brandes, and G. Zhang, “Comparison of rain drop size distribution retrievals from polarization diversity radar and profiling radar using video disdrometer measurements,” Proc. of the 31st Conference on Radar Meteorology, Seattle, 6-12 August, pp 4-7, 2003
  78. Williams, J., J. Vivekanandan and G. Zhang, “Enhanced dual-wavelength technique for remote detection of cloud liquid water content,” Proc. of the 31st Conference on Radar Meteorology, Seattle, 6-12 August, pp 130-133, 2003
  79. “Zhang, G., J. Vivekanandan, and E. Brandes, Constrained Gamma drop size model for polarimetric radar rain estimation: justification and development,” Proc. of the 31st Conference on Radar Meteorology, Seattle, 6-12 August, pp 256-259, 2003
  80. Zhang, G., R. Doviak, J. Vivekanandan, and T. Yu, “Single-antenna interferometry to measure wind,” Proc. of the 31st Conference on Radar Meteorology, Seattle, 6-12 August, pp 740-743, 2003
  81. Politovich, M., G. Zhang, J. Vivekanandan, and J. Williams, “Characteristics of clouds containing SLD relevant to remote sensing,” AIAA meeting, April, 2003
  82. Brandes, E., G. Zhang, and J. Vivekanandan, “Precipitation estimation with polarimetric radar: Results of field studies, World Weather Research Programme’s (WWRP) International Conference on Quantitative Precipitation Forecasting (QPF),” UK, 2-6 September, 2002
  83. Brandes, E., G. Zhang, and J. Vivekanandan, “Monitoring drop-size distributions with polarimetric radar,” 11th Conference on Cloud Physics, Ogden, UT, 3-7 June, 2002
  84. Brandes, E., G. Zhang, and J. Vivekanandan, “Monitoring drop-size distributions and associated rain rates with polarimetric radar,” USWRP workshop, Boulder, 22-24 April, 2002
  85. Vivekanandan, J. and G. Zhang, “Effects of scattering due to ice particles on measurement of down-welling radiation observation of K and V-band radiometers,” 10th ARAM, Portland, OR, 13-16 May, 2002
  86. Williams, J., J. Vivekanandan, J. and G. Zhang, “Evaluation of remote icing detection techniques using X-, Ka-, and W-band radar and microwave radiometer observations,” 10th ARAM, Portland, OR, 13-16 May, 2002
  87. Zhang, G., R. Doviak, and J. Vivekanandan, “Range interferometry technique to determine radial wind,” IGARSS'02, Toronto, Canada, 23-28 June, 2002
  88. Zhang, G., J. Vivekanandan, E.A. Brandes, “The shape-slope relation in Gamma raindrop size distribution: statistical error or useful information,” USWRP workshop, Boulder, 22-24 April, 2002
  89. Brandes, E., G. Zhang, J. Vivekanandan, and S. M. Ellis, “An evaluation of polarimetric radar rainfall estimators in a semi-tropical environment,” Proc. of AMS Radar Conference, Germany, 19-24 July, pp638-640, 2001
  90. Vivekanandan, J., E., G. Zhang, and M. Politovich, “Analysis of a dual-wavelength radar technique for estimating liquid water content and droplet size,” Proc. of AMS Radar Conference, Germany, 19-24 July, pp157-159, 2001
  91. Vivekanandan, J., and G. Zhang, “Precipitation particle classification and raindrop size distribution retrieval for s-band polarimetric radar measurements,” AP-RASC'01, Tokyo, Japan, 1-4 August, pp169, 2001
  92. Vivekanandan, J. and G. Zhang, “Numerical study of multi-frequency dual-polarization microwave radiometry technique for supercooled liquid water detection,” Proc. of IGARSS'01, Sydney, Ausralia, 9-13 July, 2001
  93. Zhang, G., J. Vivekanandan, and E. Brandes, “Sampling effects on radar measurements and its consequence on parameter retrieval,” Proc. of IGARSS'01, Sydney, Ausralia, 9-13 July, 2001
  94. Zhang, G., J. Vivekanandan, and R. J. Doviak, “Innovative cross-correlation method for determining three-dimensional wind,” Proc. of AMS Radar Conference, Germany, 19-24 July, pp471-473, 2001
  95. Brandes, E., G. Zhang, J. Vivekanandan, and S. M. Ellis, “An evaluation of polarimetric radar rainfall estimators in a semi-tropical environment,” 2nd USWRP Symp., Boulder, Colorado, 27-29 March, 2000
  96. Brandes, E., G. Zhang, J. Vivekanandan, and S. M. Ellis, “A study of polarimetric radar rainfall estimators in a semi-tropical environment,” AGU 2000 Spring Meeting, 30 May - 3 June, 2000
  97. Vivekanandan, J., G. Zhang, E. Brandes and J. Miller, “Raindrop size distribution retrieval using polarimetric radar measurements,” 2nd USWRP Symp., Boulder, Colorado, 27-29 March, 2000
  98. Vivekanandan, J., G. Zhang, and M. K. Politovich, “Multi-frequency and polarization radar-based detection of liquid droplets,” 9th conference of aviation, range, and aerospace meteorology, Orlando, Florida, Sept., 2000
  99. Vivekanandan, J., G. Zhang, and M. K. Politovich, “Estimation of cloud droplet size and liquid water content using dual-wavelength radar measurememts,” Proc. Of IGARSS'00, Hawaii, 24-28 July, pp1813-1816, 2000
  100. Zhang, G., J. Vivekanandan, and E. Brandes, “A method for estimating rain rate and drop size distribution from polarimetric radar measurements,” Proc. Of IGARSS'00, Hawaii, 24-28 July, pp180-183, 2000
  101. Vivekanandan, J., G. Zhang, and M.K. Politovich, “Estimate of droplet size and liquid water content using dual-frequency radar measurements for aircraft icing detection,” Proc. of 29th ICRM, Montreal, Canada,12-16 July, pp872-875, 1999
  102. Vivekanandan, J., G. Zhang, and A.V. Ryzhkov, “Estimation of canting angle distribution of raindrop spectra using radar measurements,” International Radar Symposium, India, Dec., 1999
  103. Zhang, G., J. Vivekanandan, and M.K. Politovich, “Effect of scattering on microwave passive remote sensing of cloud liquid water content,” 8th conference of aviation, range, and aerospace meteorology, Dallas, TX, Jan., 1999
  104. Zhang, G. and J. Vivekanandan, “Microwave radiation from mixed phase cloud for ground-based radiometer remote sensing,” Proc. Of IGARSS’99, Hamburg, Germany, 28 June – 2 July, 1999
  105. Li, L., C.H. Chan, L. Tsang, and G. Zhang “Wave scattering from a lossy dielectric rough surface using PBTG BMIA/CAG and applications to passive remote sensing,” Proc. of IGARSS'98, Seattle, WA, 6-10 July, 1998
  106. Zhang, G. and L. Tsang, “Angular correlation function and scattering coefficient of electromagnetic waves scattered by a 3-D buried object under a 2-D rough surface,” Proc. of IGARSS'98, Seattle, WA, 6-10 July, 1998
  107. Pak, K., T. Tsang, and G. Zhang, “Numerical studies of electromagnetic wave scattering from two-dimensional random rough surfaces,” Proc. of PIERS'97, Hong Kong, pp464, 1997
  108. Tsang, L., K. Pak, and G. Zhang, “Application of the angular correlation function of scattered wave by a random rough surface with and without a single scattering object,” Proc. of PIERS'97, Hong Kong, pp466, 1997
  109. Zhang, G., L. Tsang, and Y. Kuga, “Application of angular correlation function of wave scattering by a random rough surface and random discrete scatterers in target detection,” Proc. of IGARSS'97, Singapore, July, 1997
  110. Zhang, G., L. Tsang, and Y. Kuga, “A study of electromagnetic wave scattering by a buried object in the presence of a random rough surface and random media using angular correlation function (ACF),” PIERS'97, Cambridge, 1997
  111. Tsang, L., G. Zhang, and K. Pak, “Numerical study of detection of a buried object under a single random rough surface with angular correlation function,” Proc. Of IGARSS'96, Lincoln, NE, pp2143- 2145, 1996
  112. Zhang, G. and L. Tsang, “Wave scattering and scene images of trees generated by Lindenmayer systems,” Proc. Of IGARSS'96, Lincoln, NE, pp728-729, 1996
  113. Chen, Z., G. Zhang, L. Tsang, And W. Au, “Collective scattering effects and applications of stochastic Lindenmayer systems in microwave remote sensing,” Proc. of PIERS'95 , Seattle, WA, 1995
  114. Tsang, L., Z. Chen, G. Zhang, and W. Au, “Microwave scattering by plants generated by a stochastic Lindenmayer system,” Proc. Of IGARSS'95, Firenze, Italy, pp1340-1343, 1995
  115. Tsang, L., K. H. Ding, G. Zhang, C. Hsu, and J. A. Kong, “Backscattering enhancement of volume-surface interaction of a layer of overlying a homogeneous dielectric half space,” Proc. Of IEEE APS/URSI/NEM'94, pp2338-2341, 1994
  116. Zhang, G. and J. Hou, “Enhanced backscattering from rough surface in turbulence,” URSI General, Japan, 1993
  117. Zhang, G., “The dependence of beam spread on observation duration,” ISAP'92, Japan, 1992
  118. Li, H., Z. Zhang, and G. Zhang, “The center of gravity for rain intensity systems and choice of orbit position of a satellite,” Proc. Of 5th URSI Commision F, France, 1.5.1-1.5.4, 1989
  119. Li, H., G. Zhang, and L. Liao, “An improved model for the prediction of rain attenuation statistics,” Proc. Of ICAP'87, U.K., pp226-229, 1987
  120. Li, H. and G. Zhang, “ Prediction of rain attenuation on earth-space path,” Proc. Of ISAP'85, Japan, pp313-316, 1985
  121. Zhang, G. and H. Li, “Analytical model for effective medium temperature and its application,” Proc. Of ISAP'85, Japan, pp293-296, 1985