| 基于GPS相位观测值差分的小波变换在周跳探测中的应用 |
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| 引用本文： | 王波,张书毕,李益斌,卞和方.基于GPS相位观测值差分的小波变换在周跳探测中的应用[J].测绘与空间地理信息,2008,31(6). |
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| 作者姓名： | 王波 张书毕 李益斌 卞和方 |
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| 作者单位： | 1. 中国矿业大学,环境与测绘学院,江苏,徐州,221008;江苏省资源环境信息工程重点实验室,江苏,徐州,221008
2. 中国矿业大学,环境与测绘学院,江苏,徐州,221008 |
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| 摘 要： | 针对GPS载波相位观测值中出现的周跳,首先分别对GPS相位观测值做单差和双差处理,再根据小波变换检测信号的奇异性原理,将GPS相位观测值发生周跳处视为信号的奇异点,通过MATLAB编程,分别对相位单差和双差观测值进行小波变换来探测周跳.实验证明,基于差分法的小波变换周跳探测效率比较高,周跳位置探测比较准,而且双差观测值的周跳探测比单差观测值效果好.
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| 关 键 词： | 相位观测值 周跳探测 小波变换 差分 |
Application of Cycle-slip Detection of GPS Phase Observation Based on Wavelet Transformation by Difference |
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| WANG Bo,ZHANG Shu-bi,LI Yi-bin,BIAN He-fang.Application of Cycle-slip Detection of GPS Phase Observation Based on Wavelet Transformation by Difference[J].Geomatics & Spatial Information Technology,2008,31(6). |
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| Authors: | WANG Bo ZHANG Shu-bi LI Yi-bin BIAN He-fang |
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| Institution: | 1.School of Environmental Science and Spatial Informatics;China University of Mining and Technology;Xuzhou 221008;China;2.Jiangsu Key Laboratory of Resource and Environmental Information Engineering;China |
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| Abstract: | According to the cycle-slip of GPS carrier phase observation,in the paper the author firstly makes a single-difference and a double-difference respectively to GPS carrier phase observable,and the location of the cycle-slip is regarded as the bizarre point of the signal according to the principle of signal oddity detection,and secondly the wavelet transformation is used to detect the cycle-slip of the GPS carrier phase measurements to the single-difference and double-difference phases individually by program... |
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| Keywords: | GPS |
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