Simulation of Echoes from Ballistic Targets

The classification of warheads and decoys is a very important issue in the defense of ballistic missiles. To train and test the classifier, the echoes from all kinds of warheads and decoys in all kinds of situations have to be acquired. However, this is difficult to implement by the experiments in fields or even anechoic chambers. In this letter, a novel method is presented to simulate the echoes from ballistic targets when the radar transmits chirps or other waveforms. A tool for electromagnetic calculation, like CST Microwave Studio, is first used to simulate the frequency response of the electromagnetic scattering. The echo is then acquired from the frequency response by further processing. A series of test results shows the effectiveness of this method.