Detection and recognition of anti-ridiation missile based on external illuminator

Anti-radiation missile (ARM) detection technique in radar system which based on opportunity illuminators is investigated in this paper according to velocity and acceleration characteristics of ARM radar echo. Firstly, Range-Doppler processing and time-frequency algorithm are used to obtain the acceleration of ARM in passive radar system. Then, the approach of linear frequency modulation (LFM) compensation is applied to accumulate ARM echoes which results in an effective detection of ARM. The simulation results show the availability of the proposed algorithm.