Simulation of scattering by a rotating hypersonic object with plasma sheath

An approximate approach to simulate the scattering by a rotating hypersonic object with plasma sheath is developed. Following geometric modeling, computational fluid dynamic tool is adopted to resolve the complex dielectric constant distribution of the plasma sheath. Then the Born approximate method is applied to evaluate the influences of the plasma sheath on the scattered field. Finally, Doppler and micro-Doppler parameters are extracted by using the coherent sampling and chirp filtering techniques.