| 基于小波变换的周跳探测与修复 |
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| 引用本文： | 张金华,胡伍生.基于小波变换的周跳探测与修复[J].测绘工程,2009,18(4):24-27. |
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| 作者姓名： | 张金华 胡伍生 |
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| 作者单位： | 东南大学交通学院,江苏,南京,210096 |
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| 摘 要： | 探测和修复周跳一直是GPS定位中的关键问题。利用小波变换对相位减伪距观测量进行周跳探测。首先介绍小波变换周跳探测的一般方法，然后在此基础上提出改进。改进方法可以对周跳进行探测和直接修复，进而探测和修复多次周跳，同时有效地克服一般方法可能出现探测失误的缺点。这种改进方法的效果在实验中得到验证。
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| 关 键 词： | 小波变换 周跳 相位减伪距 全球定位系统 |
The detection and correction of cycle-slip based on wavelet transform |
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| ZHANG Jin-hua,HU Wu-sheng.The detection and correction of cycle-slip based on wavelet transform[J].Engineering of Surveying and Mapping,2009,18(4):24-27. |
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| Authors: | ZHANG Jin-hua HU Wu-sheng |
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| Institution: | (Transportation College, Southeast University, Nanjing 210096, China) |
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| Abstract: | The detection and correction of cycle-slip is always the key issue in GPS positioning. Cycle-slip is detected by using wavelet transform based on the data of phase reducing false distance in this paper. Firstly, the general method of detection of cycle-slip by wavelet transform is introduced; then, an improved method based on the general one is proposed. It can detect the cycle-slip and correct it directly, even several cycle-slips; at the same time, it can effectively overcome the general method＇s shortcoming of incorrect cycle-slip detecting. |
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| Keywords: | wavelet transform cycle-slip phase reduce false distance GPS |
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