Chaos To Suppress Interference Signals And Interference Effects Are Analyzed

With the development of science and technology, and usage of all kinds of advanced weapons in the war, the modern war depends on the effectiveness of the radar more and more. So who can prevent from using availably for radar,he will win the superiority of the war. Although radar system and mode is various currently, mask jamming always is a useful jamming mode to any kind of radar system. That is the reason that all over the countries have never stopped researching for mask jamming technology of radar.At present, the mask jamming source mainly comes from the thermal noise and zener avalanche noise of semiconductor devices.But the noise's quality isn't stabile because of the differences of semiconductor devices each other and the changes of exterior conditions. On the other hand ,because this noise can't be regenerated,it is disadvantageous for science research. With the improvement of technology of digital circuit,making use of digital circuit to produce noise has become reality.For example,m sequence has been maken as mask jamming source,but its applications are limited because of its linearity and finite amount. Therefore it's significant for mask jamming to look for more new and stable sources . The research work and innovation of this paper as follows:1. This paper had studied the possibility of chaotic signal acting as mask jamming signal.Based on this,it put forward the criteria and approaches of the quantificational evaluation for the jamming effectiveness of the mask jamming source .Then according to the method, the jamming effectiveness of some kinds of chaotic jamming sources was evaluated and contrasted with other mask jamming sources used currently. The results showed that it is feasible to use chaotic jamming signals as mask jamming sources. Its jamming effectiveness is equivalent to that of random signal and superior to that of m sequence.2. Based on the low dimensional chaotic jamming signal , this paper carried on a research to spatiotemporal chaotic signal,especially the Coupled Logistic Lattices and others that derive from it . It had analyzed the influence on jamming effectiveness about temporal interval,spatial interval and coupling coefficient.The results indicate...