Against The Interference Pattern Of The Terminal Guidance Radar Jamming

At the fornt of the interceptor missile is the guided radar, and its task is detecting target signal, extracting information and forming guidance control order. The guided radar is one of the most important subsystems in interceptor missile. If guided radar is disturbed, the efficiency of interceptor missile will reduce. So jamming the guided radar plays very useful role in the war.ECM (electronic counter measures) and ECCM (electronic counter-counter measures) like two sides of one corn. They can interact and spirally develop. In this dissertation, several effective interference patterns are put forward, based on the relation among jamming object, anti-jamming method and jamming method. Meanwhile, the guided radar simulation model is established. And the results are validated by computer simulation, that those interference patterns ars effective against guided radar.The main works of this dissertation are centralized as follows.1. The current status of the study on ECM and ECCM of guided radar is introduced. Based on the signal process of guided radar, the ablility of anti-jamming on guided radar is analyzed. At the end of this part, the main works of this paper are outlined.2. The modeling of guided radar is studied. The modeling of signals of guided radar is estimated. And the modeling of radar signal processing, the modeling of velocity tracking and angle tracking, the model of guiding are established.3. The advantages and disadvantanges of ECCM are analysed detailedly concerning PAC-guided radar. Based on the working principle of radar subsystems, several interference patterns are put forward. Then these patterns have been researched according to the radar signal process. In the end, several effective interference patterns are found through theory analyse. Meanwhile, these patterns are proven effectively by computer simulation. In this dissertation, the smart noise and the deception jamming are studied respectively.