Radar Network In Electronic Countermeasures

As the rapid development of science and technology, netted-radar technology has became the important measure of radar's anti-jamming, anti-radiation missile,anti- stealth aircraft, and low attitude attack. Because of the use of netted-radar systems, there is a full-scale action system, it has the abilities of multi-frequency, multi-ways of work, multi-overlap coefficient, and strengthens the communication and security of information. So it could exert the strongpoint of system counterwork and colony counterwork sufficiently, and be a huge challenge of the traditional jamming ways.According to this hot and difficult issue, two jamming methods are researched. The jamming environment is modeled and simulated to compute and analyze results.The work of this paper begins with the development history of electronic jamming, researches the routine jamming ways. After that, analyze the definition, classification, distribution, and data fusion of netted-radar systems. According to these, then research two jamming methods.The first one is distributed jamming. We use these small light and cheap jamming devices thrown to the near of the target for oppressive noises jamming. Because of the good close distance and high-power(commonly with a large number) advantages, and it could form a jammed sector in space, it has a good jamming performance, and this has been proved by simulation.The other one is false targets cheating-jamming with distance and orientation cheating. This method forms false targets'track points to multi-radar in network, these points has been proved to have good relativity in time and space, so the jamming effect is obvious. After the use of adaptive digital transmission beam-forming, we could get the cheating track points with highly coherence in time and space, and then we could jam the multi-radar with synchronous work ways.