Study on jamming method of inverse synthetic aperture radar based on three platform

摘要

Based on the basic principle of the multiply modulation jamming of synthetic aperture radar (SAR), a new jamming method of inverse synthetic aperture radar (ISAR) based on three platform is proposed: at first, it needs to choose an image template which is used to do 2D-FFT and compensation to generate jamming template; In order to get jamming data which need to compute the sampling interval and sample the jamming template; at last, the jamming data multiply the intercept signal to send out. The false target is created to provide an effective protection for a certain target send the result out. This method can achieve single or multiple false targets, and false targets can be adjusted according to the size, number and flight attitude of the ideal targets template. Simulation results demonstrate the effectiveness of this method. Because of the first step is independent and doesn't need any parameters of enemy ISAR system, which can be calculated in advance, comparing with the methods digital image synthesis, this method has less computational complexity.