Abstract:

According to the coherent pulse waveform of the narrowband radar, the radar cross sections (RCS) of low altitude flying targets in half space can be calculated quickly and accurately using a new algorithm which combines the half space physical optics method with the graphical electromagnetic computing (GRECO) method. Simultaneously the motion laws of the radar platform and radar targets are fully considered in this algorithm. Then the ground clutter in actual landform environment is produced. Finally, the radar echo signals including target and clutter information are studied with frequency domain signal processing methods. The functions of detecting radar targets and measuring distance and speed of them are realized in this simulation system. The architecture of the system, the functions and principles of each module, as well as demonstrating examples are given.