三星编队TDOA定位精度分析
P227; 利用低轨微纳卫星编队测定地面无线电发射源位置是全球范围内监视非合作无线电信号源的高效手段.采用星基TDOA测量实现无源定位是其中关键技术.本文分析了影响星基TDOA定位误差的主要因素.针对三星编队监测卫星,给出了基于高程约束的单历元定位方法及多历元距离差定位方法,利用仿真数据对上述定位方法精度进行了试验分析.结果表明,采用等边三角形编队卫星,对海面非合作信号源,TDOA单历元定位精度约为510m,多历元定位精度可提高到110m,高低配置三角形编队卫星在星下点轨迹附近定位误差较大....
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| Published in | 测绘学报 Vol. 52; no. 10; pp. 1631 - 1639 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
西安测绘研究所,陕西 西安 710054
20.10.2023
地理信息工程国家重点实验室,陕西 西安 710054 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-1595 |
| DOI | 10.11947/j.AGCS.2023.20220269 |
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| Abstract | P227; 利用低轨微纳卫星编队测定地面无线电发射源位置是全球范围内监视非合作无线电信号源的高效手段.采用星基TDOA测量实现无源定位是其中关键技术.本文分析了影响星基TDOA定位误差的主要因素.针对三星编队监测卫星,给出了基于高程约束的单历元定位方法及多历元距离差定位方法,利用仿真数据对上述定位方法精度进行了试验分析.结果表明,采用等边三角形编队卫星,对海面非合作信号源,TDOA单历元定位精度约为510m,多历元定位精度可提高到110m,高低配置三角形编队卫星在星下点轨迹附近定位误差较大. |
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| AbstractList | P227; 利用低轨微纳卫星编队测定地面无线电发射源位置是全球范围内监视非合作无线电信号源的高效手段.采用星基TDOA测量实现无源定位是其中关键技术.本文分析了影响星基TDOA定位误差的主要因素.针对三星编队监测卫星,给出了基于高程约束的单历元定位方法及多历元距离差定位方法,利用仿真数据对上述定位方法精度进行了试验分析.结果表明,采用等边三角形编队卫星,对海面非合作信号源,TDOA单历元定位精度约为510m,多历元定位精度可提高到110m,高低配置三角形编队卫星在星下点轨迹附近定位误差较大. |
| Author | 宋小勇 王龙 冯来平 宗文鹏 毛悦 |
| AuthorAffiliation | 地理信息工程国家重点实验室,陕西 西安 710054;西安测绘研究所,陕西 西安 710054 |
| AuthorAffiliation_xml | – name: 地理信息工程国家重点实验室,陕西 西安 710054;西安测绘研究所,陕西 西安 710054 |
| Author_FL | SONG Xiaoyong WANG Long FENG Laiping ZONG Wenpeng MAO Yue |
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| DocumentTitle_FL | Analyzing the geolocation precision of TDOA using formation-flying cluster of three microsatellites |
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| Keywords | 被动定位 low earth orbit satellite passive geolocation formation flying 到达时间差 定位精度 geolocation precision 编队卫星 低轨卫星 time different of arrive |
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| Title | 三星编队TDOA定位精度分析 |
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