| 多站无源时差定位精度分析 |
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| 引用本文： | 邢翠柳,陈建民. 多站无源时差定位精度分析[J]. 无线电工程, 2012, 42(2): 32-34,48 |
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| 作者姓名： | 邢翠柳 陈建民 |
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| 作者单位： | 中国电子科技集团公司第五十四研究所,河北石家庄,050081 |
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| 摘 要： | 针对在多站无源时差定位系统中影响目标定位精度的因素,分析了时差测量误差和站址误差对目标定位精度的影响。影响时差测量精度的因素有接收机热噪声、多普勒效应、站间同步误差、本地时钟误差和大气等因素。通过分析各个因素对目标定位精度的影响程度,在特定布站方式下,仿真计算得到在固定时差测量误差和站址误差下可能达到的目标定位精度,并根据主要误差来源提出相应的提高定位精度的措施。
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| 关 键 词： | 时差定位 定位精度 时差测量误差 站址误差 |
Analysis on Positioning Accuracy of TDOA Passive Location by Multi-station |
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| XING Cui-liu,CHEN Jian-min. Analysis on Positioning Accuracy of TDOA Passive Location by Multi-station[J]. Radio Engineering of China, 2012, 42(2): 32-34,48 |
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| Authors: | XING Cui-liu CHEN Jian-min |
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| Affiliation: | (The 54th Research Institute of CETC,Shijiazhuang Hebei 050081,China) |
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| Abstract: | Aiming at the factors which affect on the positioning accuracy of TDOA passive location by multi-station,this paper analyzes the influence on target positioning accuracy by error in time difference measurement and station locations.The influence factors on time measurement accuracy include Johnson noise of receiver,Doppler effect,error on time synchronization between stations,local clock error,influence by atmosphere and so on.The positioning accuracy is got in special station location with error in time difference measurement and station location by simulation.The methods of improving the accuracy of positioning accuracy are given. |
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| Keywords: | TDOA location positioning accuracy error in time difference measurement error in station location |
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