| 模糊度直接求解算法用于GPS周跳的探测与修复 |
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| 引用本文： | 贾媛,朱成林,张建海.模糊度直接求解算法用于GPS周跳的探测与修复[J].测绘科学,2011,36(2):76-77. |
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| 作者姓名： | 贾媛 朱成林 张建海 |
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| 作者单位： | 山东省地震工程研究院;山东省地震预报研究中心;宁夏土地勘测利用技术中心; |
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| 摘 要： | 探测与修复周跳是GPS数据处理中的一个关键问题.针对CPS载波相位定位中出现的周跳问题,本文提出了一种新的周跳探测与修复的方法:首先组成双差相位观测方程,并根据观测文件中的近似坐标求得基线约束条件;随后利用基线约束条件直接求解各个历元的模糊度值,并依据历元间的模糊度变化来探测与修复周跳.通过编写应用程序和实例验证表明这...
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| 关 键 词： | 探测与修复 周跳 GPS 基线约束 模糊度 |
Use of direct calculation for ambiguity resolution in GPS cycle slips detection and recovery |
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| JIA Yuan,ZHU Cheng-lin,ZHANG Jian-hai.Use of direct calculation for ambiguity resolution in GPS cycle slips detection and recovery[J].Science of Surveying and Mapping,2011,36(2):76-77. |
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| Authors: | JIA Yuan ZHU Cheng-lin ZHANG Jian-hai |
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| Institution: | ③(①Shandong Institute of Earthquake Engineering,Jinan 250021,China;②Shandong Earthquake Prediction Research Center,Jinan 250014,China;③Ningxia Land Surveying & Using Center,Yinchuan 750001,China) |
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| Abstract: | Detection and recovery of cycle-slip is a key issue for GPS data processing.To the problem of cycle slips in GPS carrier phase positioning,this paper presented a new method of cycle slips detection and recovery: First of all,the double difference phase observation equation was composed,and the baseline constraints were obtained through the approximate coordinates in observing files;second,each epoch ambiguity value was obtained directly by the baseline constraints;then detected and recovered the cycle slips... |
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| Keywords: | detection and recovery cycle-slip GPS baseline constraint ambiguity |
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