多站时差定位关键技术研究

提出一种基于机动平台的电子侦察目标精确定位方法,利用多站观测获得雷达辐射源时差信息,通过定位跟踪算法实现目标位置精确估计。该方法具有较大的灵活性,适用于任意机动观测平台,且可方便地推广应用于更多机动平台组网观测,以提高侦察定位精度和稳健性。分析了精确时差测量、辐射源定位跟踪等关键技术,并进行了性能分析仿真。

Techniques for multi-platform TDOA geolocation

An approach for precision geolocation of radar emitters using netted airborne sensors is proposed. TDOAs are measured with three aerial vehicles each carrying the ESM payload. The emitter location estimation is obtained by using target tracking/filtering algorithms. The proposed method can be readily extended to accommodate to the more complex scenario where more netted sensors are incorporated thus higher location accuracy and robustness can be expected. Techniques for precision TDOA measurement and emitter geolocation are analyzed in detail. Finally, a simulation is provided to demonstrate the performance of the proposed method.