Spurious signals analysis of synchronous deceptive jamming on range and velocity

Range-velocity synchronous pull-off jamming based on digital radio frequency memory is a widely used jamming style. The spurious signals of the jamming style are analyzed. It is pointed out that the main resource of the spurious signals is the discrete delay step and delay renew period when modulating the range information if the phase renew period of Doppler frequency modulation if properly selected. Higher middle frequency sample frequency and proper pull-off velocity are needed to get lower spurious signals. Simulation results prove the validity of theory analysis.