Study On Anti-jamming Of Antiaircraft Radar Seeker

With the development of electronic countermeasure technology, anti-jammingcapability of the radar ever-increasing demands.The jamming of the antiaircraft radarseeker is not just a single and determined, but varied and uncertain. For the receivedsignal, we can not determine exactly which a real traget and which a jamming.In thiscontext, the proposed anti-jamming means of an aircraft radar seeker is on thisbackground.The object of this paper is an antiaircraft radar seeker of frequency agile, high rangand speed resolution. A comprehensive techniques of anti-jamming is proposed on thisrader seeker. The article first introduces the jamming environment faced by theantiaircraft radar seeker and analyzes the characteristics of each jamming. Proceed fromthe characteristics some jamming can be avoid on source. The jamming which can notavoid in the source have to be put into the signal layer to analyze. The anti-jammingmeans of the signal layer can be raised by the analysis of the characteristics of eachjamming in the signal layer. Due to the high range and speed resolution of the radar, thejamming and the target can be separated in signal layer. But the radar seeker faces acomplicated and uncertain environment and is unable to distinguish the target andjamming in the signal layer. Because of the jamming and target can not be distinguishedin the signal layer, the date kept back have to be put into the next link of the data layerto filter out the jamming.The antiaircraft radar seeker facing a wide range of and uncertain jamming canenhance the anti-jamming capability through anti-jamming on each layer.