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passive location systems
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  无源系统
     Study on AOA and Joint Location Method of TDOA and FDOA in Passive Location Systems
     无源系统测向及时差频差联合定位方法研究
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  “passive location systems”译为未确定词的双语例句
     In this paper, started with the most elementary probability formula of Fisher matrix for time delay estimation, some properties of the Fisher matrix for time delay, Doppler shift and its hither derivatives joint estimation are exploited by use of Toeplitz matrix chracteristics in passive location systems.
     本文从时延估计的Fisher矩阵的最基本概率表达式入手,利用Toerlitz矩阵性质,对无源定位中时延、多普勒及其更高阶导数联合估计的Fisher矩阵的性质进行分析。
短句来源
     In this paper, multi-target measurement data association for the passive location systems is studied, the relationship between the measurement data and the position of target is analyzed, and the degree of measurement data association is defined. The association algorithm of passive location systems based on DOA(direction of arrival) is analyzed, and the validity of the algorithms is veritied by the simulations. \;
     分析了被动定位系统的多目标测量数据关联问题 ,指出要完成多目标测量数据关联被动定位系统需要获得对目标的冗余测量信息 ,并在分析测量数据与目标真实位置的空间几何关系基础上 ,定义了测量数据关联度的概念 ,最后结合测向交叉定位算法提出了无需对目标进行假设定位的测量数据关联方法 ,并进行仿真 ,证明其为一种有效的关联算法。
短句来源
     Multi-Target Measurement Data Association for Passive Location Systems Based on Direction of Arrival
     测向交叉定位系统的多目标测量数据关联
短句来源
     Bearing Measurements Association in Passive Location Systems
     被动定位系统中的方位数据关联
短句来源
     The major research works are divided into five sections, including warship bearings-only tracking maneuver research, warship bearings-only tracking research, multi-warships passive data association research, multi-warships passive location research and the engineering implementation of bearings-only passive location systems.
     研究内容共分五个方面,分别是单舰纯方位无源定位机动研究、单舰纯方位无源定位跟踪研究、多舰无源数据关联研究、多舰纯方位无源定位研究以及舰艇纯方位无源定位系统的工程实现,主要完成了如下的工作:
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  相似匹配句对
     Passive Location of IRST
     IRST被动定位研究
短句来源
     Study on Passive Location of Emitter
     辐射源无源定位研究
短句来源
     Bearing Measurements Association in Passive Location Systems
     被动定位系统中的方位数据关联
短句来源
     From Passive to Active
     应对RoHS,变被动为主动
短句来源
     Iris Location
     虹膜定位
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  passive location systems
Nonstandard Hardware for Adaptive Controllers and Passive Location Systems
      


Passive location and tracking method using multiple measuring station is discussed for a moving target carrying an active emitter. Weighted least square estimation for target location and Kalman filtering for tracking and predication are used in such passive location system. Simulation results show that it is an efficient mathod for emitter location. The location accuracy depends on the number, measuring accuracy and geometry of the stations and the moving emitter trajectories....

Passive location and tracking method using multiple measuring station is discussed for a moving target carrying an active emitter. Weighted least square estimation for target location and Kalman filtering for tracking and predication are used in such passive location system. Simulation results show that it is an efficient mathod for emitter location. The location accuracy depends on the number, measuring accuracy and geometry of the stations and the moving emitter trajectories.

本文探讨了在有源干扰环境下利用多个测量站对运动辐射源进行被动定位与跟踪的方法。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。计算机仿真结果表明,该系统可对运动辐射源定位,定位精度主要由测量站数目、布局及其测量精度和目标航迹所确定。

This paper presents an algorithm based on TOA (Time of Arrival) and azimuth measurement. The location principle and feasibility of the technique are analysed in detail. For some bistatic radar systems with receivers which locate and track 3-D moving targets by means of passive method, it is sometimes difficult to measure elevation angle of targets. Therefore the algorithm proposed in the paper is clearly of great importance to the practicability of bistatic passive location systems. The performance of...

This paper presents an algorithm based on TOA (Time of Arrival) and azimuth measurement. The location principle and feasibility of the technique are analysed in detail. For some bistatic radar systems with receivers which locate and track 3-D moving targets by means of passive method, it is sometimes difficult to measure elevation angle of targets. Therefore the algorithm proposed in the paper is clearly of great importance to the practicability of bistatic passive location systems. The performance of this algorithm is evaluated with the help of computer simulation ( according to Monte Carlo Methods ) for typical target paths.

本文提出了一种基于TOA(到达时间)和方位角测量的算法,详细分析了该技术的定位原理和可行性。在某些接收机以被动方法对三维运动目标定位跟踪的双基地雷达系统中,往往难以测量目标的俯仰角;因此本文提出的算法对于双基地被动定位系统的实用性明显地具有很重要的意义。文中通过典型目标航迹的计算机仿真 (按照Monte Carlo方法)对算法的性能做了评估。

Recognition of ghosts is a very important problem in multi-sited passive location system based onbearing-Only measurements. In this paper, the discussion is based on a passive location system whichcontains a fixed sensor and a moving sensor. A new method for ghost recognition is presented. The ap-proach consists of two phases: the first step is to locate the multi-emitter precisely using extendedKalman filter, Secondly recognizing the ghost with space correlation processing. Computer simulationsshow...

Recognition of ghosts is a very important problem in multi-sited passive location system based onbearing-Only measurements. In this paper, the discussion is based on a passive location system whichcontains a fixed sensor and a moving sensor. A new method for ghost recognition is presented. The ap-proach consists of two phases: the first step is to locate the multi-emitter precisely using extendedKalman filter, Secondly recognizing the ghost with space correlation processing. Computer simulationsshow that the above recognition method has good performance when angle span between two targets islarger than the standard derivation of angle measurements. The accuracy of true target location by thissystem in multi-emitter condition approaches to the same value as in single emitter condition.

多站被动定位中,虚假定位点的识别问题是电子侦察中尚待解决的一个重要问题。本文研究包含一个运动站的只测角两站被动定位系统,提出先用扩展Kalman滤波对多个辐射源精确定位,然后通过空间相关处理识别虚假定位点的方法,大量的计算机仿真结果表明,上述识别方法在两目标张角大于测角误差的均方根值时,具有良好的识别效果。系统识别出的真实定位点,其定位精度可达单目标环境下的同等定位精度。

 
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