摘要
Abstract
According to the continuity of the Tactical Air Navigation System( TACAN) pulse sequence,a new passive localization algorithm based on multiple-pulse combined processing is proposed. This method requires only two antenna elements with long distance from each other. First, the position ( the detection platform,the target aircraft and the TACAN beacon) relation equations corresponding single-pulse and the multi-pulse are established by using the characteristics of the TACAN pulse,and then an initial solution of the target azimuth is obtained. Second,the interferometer's directional ambiguity can be eliminated by u-sing the initial azimuth solution,and a high-precision azimuth solution is solved according to the long dis-tance interferometer. Then,a high-precision solution of the target location can be obtained by substituting the azimuth in the time difference hyperbolic equation. Compared with traditional methods, the proposed method has a higher direction-finding accuracy and more simplified antenna layouts,which can promote its engineering applications.关键词
无源定位/辐射源定位/塔康/多脉冲/联合测向Key words
passive localization/radiation source localization/tactical air navigation system ( TACAN )/multi-pulse/combined direction-finding分类
信息技术与安全科学
