Radar ECM And ECCM Simulations

In the face of more and more complex electromagnetic environment,all kinds of passive/active jamming bring radar severe challenges when it works.Radar must improve the anti-interference ability for this complex electronic countermeasures environment,so its efficiency of the ability to survive and play normal can be increased.Radar jamming and anti-jamming technique are important research topic,this paper chose a kind of jamming from a host of passive and active jamming separately to study.For corner reflector passive interference,this paper study its jamming principle and form,and put forward a radar jamming recognition algorithm based on polarization invariant to identify ship and corner reflector.In the search phase,corner reflector echo and radar echo will not in the same range unit zone,so it means that the anti-jamming method is useful when radar identify radar echo and corner reflector echo successfully.The effectiveness of the anti-interference algorithm is verified through the computer simulation.Range false target jamming is used widely as an active jamming.In this paper,we describe the principle of range false target jamming in detail,and its validity is validated by the simulation of range false target jamming based on its tactical performance parameters are given.Standing on radar anti-jamming position,this paper propose a counter-measures to range false target,it is sending pseudorandom pulse repetition period(PRT)agility,and making the responder synchronization false targets become asynchronous false targets after entering into radar receiver.And then suppress the jamming by multiplicative non-coherent accumulation.The simulation results approve that.