Research On Simulation And Jamming Technology For The Radar Network System

With the development of radar networking technology, traditional jamming method against the single radar system can not jam radar networking effectively. C urrently, mostly research on jamming against radar networing concentrate on distributed jamming and track deception jamming.Their basic idea are both “Jamming net against Radar net” which can obtain a good jamming effect theoretically. However, current technilogy of pilotless aircraft can not ensure well coopoeration in jaming net which restricts the application of these jamming methods in practice. Facing with this situation, this dissertation studied a practicable multi-plane cooperate jamming scheme, and the validity has been demonstrated.Chap 1 illustrates the background and significance of this research subject. The present status of jamming technology, jamming equipment against radar networking, and simulation and modeling of radar networking are introduced. At the same time, this chapter discusses the system framework and major work of this dissertation.Chap 2 establishes the model of distributed radar networking system. The part of single radar model is introduced, and the part of fusion center is analysed particularly. Based on the model of distributed radar networking system, we actualize it. The advance of detect precision and anti- jamming ability are validated through simulation in scene of parallel queue, multi false target jamming and noise jamming.Chap 3 studies some representative jamming methods, includes narrow band noise jamming, multiple-target deception jamming and coherent dual-source jamming. This dissertation proposes a new false target SNR in edge calcuated model which is based on primary study result, and perfects the consequence about the connection between neighbour false target. The numeric simulation and signal simulation are made to prove the jam effect of these three jamming.Chap 4 simulates and demonstrates a multi-plane coopreative jamming frame based on jamming against radar networking simulation platform. In this framework, we summarize that multiple-target deception jamming fits far range and coherent dual-source jamming fits close range. This result becomes foundation of subsection accurate jamming. Then, the framework studies power distribution of multi jamming plane in order to reach the goal of max jam efficiency. Estimating index set about uppressing jamming is given and the weight of every index is calculated through AHP method. Then, the projec t builds math model about jam power distribution, and we get satisfactory result using genetic algorithm. At last, in order to prove the effective of this project, the simulation is taken in several situations.Chapter 5 summarizes the research work and ma in innovations, and discusses the future work to be researched.