Discriminate the Decoy and Target Using Frequency Profile Modeling in the Radar Terminal Guidance
【摘要】：In the radar terminal guidance, discriminate the decoy and target is the primary problem to counter the towed radar active decoy jamming and achieve the precision strike. In the course of angle deception of the decoy, the triangular geometry relationship among the missile, the target and the decoy alters, and the Doppler frequency of the target and the decoy is different. In this paper, based on the detailed analysis of the frequency separability, the frequency profile modeling of the target and decoy is obtained and the separation of them is achieved based on the existed Doppler difference, through adopting the L class of Wigner Ville Distribution method. Then in aid of the high frequency resolution monopulse angle measurement, the angle information of the target and decoy is gained, and the discrimination is achieved. The simulation results validated the availability.