无源定位与数据融合技术在辐射源目标跟踪中的应用

Application of Passive Location and Data Fusion Techniques in Emitter Target Tracking

在多机动辐射源无源定位与跟踪系统中 ,因受低空杂波、电子干扰和雷达自身探测精度等因素影响 ,易使无源定位的数据不精确、不可靠 ,甚至相互矛盾 ,结果造成跟踪系统失效。针对这一情况 ,首先应用测向测时差定位法 ,处理机动辐射源的无源定位问题 ;然后在此基础上 ,应用数据融合技术进一步提高系统的定位与跟踪精度、可靠性和防御作战能力。仿真结果表明 ,该方法是有效。

Influenced by low-altitude clutters, electronic jamming and low detection accuracy of radars, the data of passive location are usually inaccurate, unreliable and even contradictory in a passive location and tracking system of multiple-maneuvering emitters, which may result in the failure of the tracking system. To solve this problem, this paper first applies the bearing time difference location method to deal with the passive location problem of the maneuvering emitters, and then adopts data fusion techniques to improve further the location & tracking accuracy, reliability and defensive operational capability of the system. The simulation results indicate that the method is effective and feasible.