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  		 <h1>Ryan May's Research Page</h1>
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    <h1>Radar Emulator</h1>
    <p>Thus far the bulk of my research has focused on a software radar emulator/simulator which is described in
    <a href="research/papers/emulator-JTECH-2007.pdf">May et al. 2007</a>.  The initial application focused on
    testing how tornadic signatures in radar data degraded as a function of range and sampling intervals for a
    broad beam radar. An example of the simulated data is shown below.<br>
    <img src="images/4panel-basic-zoom.png" alt="4-panel plot of simulated data"><br>
    The image shows (a)returned power, (b) equivalent reflectivity factor, (c) Doppler Velocity, and (d) Doppler Spectrum Width
    for a WSR-88D type radar.</p>
    <p>Current work on the emulator includes adding full time-series simulation as well as an upgrade on the scattering
    model from the Rayleigh assumption to a full scattering calculation that allows for non-spherical particles as well as
    resonance effects.  Currently, T-matrix and Discrete Dipole Approximation methods are being evaluated.</p>
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