| Kal man 滤波在 GNSS 伪距单点定位中的应用 |
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| 引用本文： | 张月超,陈义,胡川.Kal man 滤波在 GNSS 伪距单点定位中的应用[J].全球定位系统,2013(6):31-35,57. |
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| 作者姓名： | 张月超 陈义 胡川 |
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| 作者单位： | [1] 同济大学测绘与地理信息学院,上海200092 [2]现代工程测量国家测绘局重点实验室,上海200092 |
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| 基金项目： | 国家自然科学基金（批准号：41074017） |
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| 摘 要： | G PS定位是利用G PS卫星位置，以卫星天线到接收机天线的距离作为观测值来解算接收机坐标的理论和方法。伪距单点定位仅是以G PS信号中的测距码作为距离观测值以此来解算目标的坐标值及接收机钟差的方法。简单介绍了G PS 伪距单点定位的基本理论模型，分别探讨了其最小二乘解法和Kalman滤波解法。最后对两种解算结果进行对比分析， Kalman滤波能够很好的平滑解算结果，使得结果的稳定性更好。
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| 关 键 词： | 单点定位 GPS Kalman滤波 单历元 |
The Application of Kalman Filter in Single Point Position Using GPS C/A Code |
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| ZHANG Yuechao,CHEN Yi,HU Chuan.The Application of Kalman Filter in Single Point Position Using GPS C/A Code[J].Gnss World of China,2013(6):31-35,57. |
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| Authors: | ZHANG Yuechao CHEN Yi HU Chuan |
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| Institution: | 1. College of Surveying and Geo-in f ormatics , TongJi University, Shanghai 200092, China; 2. Key Laboratory of Modern Engineering Surveying, SBSM, Shanghai 200092, China) |
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| Abstract: | The method of Point Position using GPS makes use of GPS satellites ’positon and distances of antennas of satellites and antenna of receiver .Single point position just make use of C/A code or P code in GPS signal as observations to calculate the position of target and receiver clock-offsets .The basic theory of single point position using GPS C/A code is in-troduced ,and the application of LS and Kalman Filter in thus field is discussed .Finally the numerical example has proved that Kalman Filter could smooth results in different epoch and make results more stable . |
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| Keywords: | Single point position GPS Kalman filter single epoch |
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