passive target tracking and location 目标被动跟踪定位
So, the detection and extraction of signals reflected by the target are difficulties and the key technology of passive tracking location.
因此，目标反射信号的检测和提取是个难点，也是无源探测定位的关键技术之一。
According to this, this paper focuses on the study of bearings-only passive tracking system in the aspects of the target location, time alignment and nonlinear filtering algorithm.
基于这样的背景，本文从目标定位、时间配准和非线性滤波算法三个方面对多站纯方位被动跟踪系统进行了研究和算法改进。
The estimate algorithm of the location of the target solved passive location and tracking to a moving target with triangle bearing location algorithm by using the information from two stations.
提出的算法是利用两个观测站测得的信息，应用三角交叉定位法，对运动目标辐射源位置的估计算法进行了研究。
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