Abstract:

The jamming against to the linear frequency modulated pulse compression radar which always considers the mean level constant false-alarm rate detector, but the order-statistic constant false-alarm rate (OS-CFAR) detector is designed for the multiple false targets, and there is no specific jamming technique at present. A multiple false targets generation method specifically for the OS-CFAR detection is proposed. Firstly, according to the principle of the OS-CFAR detection, the design principle of multiple false targets based on interruptedsampling and partial periodic repeater jamming is proposed. Then, according to the detection characteristics of the OS-CFAR, the interference key parameters are set. After the placement of radar jammer position or the frequencyshift forwarding reasonably,as a result, multiple false targets with the quantity, amplitude and space distribution which can be controlled are produced around the true target.Simulation results show that the proposed jamming method can reduce the detection probability of the target effectively.