Compound electromagnetic scattering value simulation method of electrically large complex object and rough surface background
A numerical simulation, composite electromagnetic technology, applied in the direction of reflection/re-radiation of radio waves, utilization of re-radiation, radio wave measurement systems, etc., can solve the problem of not considering the impact of target imaging
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[0099] Simulation results
[0100] The present invention uses 3 examples to verify the feasibility of the three-dimensional object scattering imaging and reconstruction algorithm: regular square prism ( figure 2 ), tanks, tanks placed on random rough ground ( Figure 15 ). Solve the backscattering field numerically with BART , and then use these data for three-dimensional imaging; also use the FEKO-PO algorithm to solve the scattering field of the first two models and perform imaging for verification and comparison.
[0101] A. Regular prism model
[0102] Calculation example 1: Using BART and FEKO, calculate as figure 2 The backscattering field of a regular square prism with an ideal metallic conductor is shown. The side lengths of the top surface and the bottom surface of the square prism are 0.4 m and 1.0 m respectively, and the height is 1.0 m. Horizontally polarized plane electromagnetic waves irradiate the target area, and the frequency of SF radar is from 1.0 G...
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