Distribution analysis of multi-source decoying system against ARM

Based on the theory of active decoying system against anti-radiation missile (ARM), decoying error formula was presented, decoying process of multi-source against ARM was analyzed and decoying effectiveness evaluation model was also established. In view of three-source and four-source decoying system, three simplified distributions´ models (two for three-source decoying system and one for four-source decoying system) were proposed. According to given attack angle of ARM, the influence of distributions´ omnidirectional change on radar and baits´ protected probabilities was analyzed. Besides, illustrated by the case of four-source distribution, the effect of bait-to-radar power ratio on radar´s protected probability was discussed. Simulation results have great significance in researching the operational effectiveness of multi-source decoying system against ARM.