| 单频GPS周跳检测与估计算法 |
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| 引用本文： | 贾沛璋,吴连大.单频GPS周跳检测与估计算法[J].天文学报,2001,42(2):192-197. |
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| 作者姓名： | 贾沛璋 吴连大 |
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| 作者单位： | 1. 中科院系统科学所
2. 中科院紫金山天文台 |
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| 摘 要： | 提出一种单频GSP载波相位中的野值，周跳俭测与模糊度估计算法，采用三阶多项式的卡尔曼滤波检测野值与周跳，而用一种最佳小波估计模糊度，该算法适用于采样间隔为1秒的载波相位测量，用1995．6．22Topex星载GPS数据计算的结果表明，它有限高的效率，可以准确估计信号中断几秒内的模糊度。
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| 关 键 词： | GPS 周跳 模糊度 卡尔滤波算法 载波相位 小波方法 |
| 修稿时间： | 2000年4月10日 |
AN ALGORITHM OF DETECTING AND ESTIMATING CYCLE SLIPS IN SINGLE-FREQUENCY GPS |
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| JIA Pei Zhang,WU Lian Da.AN ALGORITHM OF DETECTING AND ESTIMATING CYCLE SLIPS IN SINGLE-FREQUENCY GPS[J].Acta Astronomica Sinica,2001,42(2):192-197. |
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| Authors: | JIA Pei Zhang WU Lian Da |
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| Institution: | JIA Pei Zhang 1 WU Lian Da 2 |
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| Abstract: | The algorithm of detecting outliers and cycle slips in single frequency GPS using Kalman filter in the model of the 3rd order polynomial, and estimating ambiguity using optimal Wavelet is presented in this paper. It is applicable to the carrier phase measurement with one sample every second. The calculated results using data of GPS on Topex satellite on 1995.6.22 show that the algorithm is so efficiency, that it can accurately estimate the ambiguity even carrier phase signals break off a few seconds. |
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| Keywords: | GPS cycle slips ambiguity |
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