The feed-forward control of utility grid voltage counteracts the influence of utility grid. The system becomes a simple passive tracking system.
电压前馈补偿可以抵消电网作用，使系统近似成为一个简单的无源跟随系统。
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。
Constructing the system of passive multi-sensor so as to achieve the passive target detecting and tracking is significant to enhance the capability of defense system.
构建被动多传感器防御系统，实现全被动的目标探测与跟踪，对于提高防御系统的能力，具有十分重要的意义。
Weighted least square estimation for target location and Kalman filtering for tracking and predication are used in such passive location system.
该无源被动定位系统采用了加权最小二乘法来估计目标位置并用卡尔曼滤波器对目标进行跟踪与预测。
Observability analysis is the basic and prime task in passive localization and tracking system, for only when the system is observable, it can be determined with unique and definite solution.
可观测性分析是无源定位与跟踪系统的前提和基础，只有满足可观测条件才能对系统进行正确求解。
Passive localization and tracking system plays an important role in the electronic reconnaissance, because it works silently without electromagnetic radiation and covering larger region.
无源定位与跟踪技术自身不辐射电磁波而且探测距离远，所以它在电子侦察中扮演着越来越重要的角色。
Observability analysis is the basis and prime task in a passive location and tracking system.
可观测性分析是无源定位与跟踪系统的前提和基础。
Observability analysis is the basis and prime task in a passive location and tracking system.
可观测性分析是无源定位与跟踪系统的前提和基础。
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