Anti-radiation missile (ARM) is the archenemy of radar on the current battlefield,while using active decoy against ARM is a comparative convenient and effective method.The operating principle of the passive radar seeker (PRS) and decoy is studied.The timing control algorithm is discussed based on the three-point unbeamed decoy system.Simulation experiment verifies its validity.

To build an effective model for effectiveness evaluation is the premise to study the anti-stealth detection of bistatic guidance radars. The detection coverage coefficient and the guaranteed precision coefficient are defined. The detectable area and the guaranteed precision area are calculated by the mesh generation method. The simulation results show that the anti-stealth efficiency coefficient is higher when only considering detection or tracking and the efficiency evaluation data are reliable when considering both of them. The rationality and effectiveness of the model are validated.