| 信号短暂缺失下的非完备GPS定位算法研究 |
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| 引用本文： | 郑睿,陈杰.信号短暂缺失下的非完备GPS定位算法研究[J].电子科技大学学报(社会科学版),2009(4). |
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| 作者姓名： | 郑睿 陈杰 |
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| 作者单位： | 中国科学院微电子研究所通信与多媒体SOC研究室; |
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| 基金项目： | 国家自然科学基金(60425413) |
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| 摘 要： | 该文提出一种在城市峡谷等复杂环境中卫星被频繁遮挡造成卫星信号短暂缺失的非完备条件下,利用少于3颗有效卫星,实现满足一定精度要求的定位方法。实际数据测试表明,在数十秒的短暂非完备期间内,该方法可以提供满足导航要求的定位结果,从而提高了GPS接收机的有效性。该方法不依赖额外传感器,亦不需要电子地图支持,同时系统成本无明显增加。
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| 关 键 词： | GPS双星定位 全球定位系统 GPS单星定位 信号短暂缺失 |
New Algorithm of GPS Positioning in Incomplete Condition of Temporal Insufficient Signal |
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| ZHENG Rui , CHEN Jie.New Algorithm of GPS Positioning in Incomplete Condition of Temporal Insufficient Signal[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2009(4). |
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| Authors: | ZHENG Rui CHEN Jie |
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| Institution: | Institute of microelectronics;Chinese Academy of Sciences Chaoyang Beijing 100029 |
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| Abstract: | A new algorithm is proposed to enable GPS positioning with acceptable accuracy based on less-than-three available satellites in insufficient condition caused by temporal signal blockage. Tests in real data demonstrate that the proposed algorithm offers significant improvement of GPS availability by providing location results suitable for navigation applications in temporal insufficient condition more than one minute. The algorithm does not need extra sensors or support of digital maps, meanwhile the increas... |
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| Keywords: | double satellites positioning GPS single satellites positioning temporal insufficient signal |
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