Anti-jamming technology of dense co-frequency synchronous range false targets

The co-frequency synchronous range false target deception jamming based on digital radio frequency memory is able to form stable tracks, which causing the radar to track the false target and be under great threat. In view of pulse system range tracking radar, this paper proposes a new scheme of the inter-frame multiplicative non-coherent processing which counters the co-frequency synchronous range false target deception jamming with the pulse repetition period (PRT) agility. Radar system sends random PRT agility, and makes the responder synchronous false targets change into asynchronous false targets after entering the radar receiver, and then suppresses jamming by inter-frame multiplicative non-coherent accumulation. This method rejects the dense co-frequency synchronous range false targets jamming which can form stable tracks effectively, which has been approved by the simulation results.