Passive Radar Seeker And Anti-jamming Technology

In modern electronic warfare circumstance,various decoying technology is used in radar to counteract anti-radiation-missiles. It is very important for passive radar seekers (PRS) to identify and track one of sources correctly among multi-sources.Usually dual sources (radar and decoy) have the same or alike modulation and position. In this dissertation,method of DOA identification is studied in order to tracking individual radiation source correctly.The main efforts and results of this dissertation can be summarized as follows:1. The analytic expression of PRS angular measurement under the condition of PRS accumulating data is given and proved by simulation experiments.2. The condition of PRS tracking the stronger source between dual sources is given quantitatively,this condition is of great value to designing a real PRS.3. The method for PRS determining whether there exist dual sources or single source is put forward.4. The method for PRS tracking the weaker source from dual sources is put forward.5. Some valuable conclusions are given by simulation experiments for a kind of anti-radiation-missile attacking dual sources.6. The method for PRS counteracting interference of two noise FM jammers is presented.