| 一种双频载波相位周跳探测与修复方法 |
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| 引用本文： | 郭翔,鲁铁定,裴东东.一种双频载波相位周跳探测与修复方法[J].测绘科学,2017,42(9). |
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| 作者姓名： | 郭翔 鲁铁定 裴东东 |
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| 作者单位： | 1. 东华理工大学测绘工程学院,南昌330013;黄河勘测规划设计有限公司测绘信息工程院,郑州450045;2. 东华理工大学测绘工程学院,南昌330013;流域生态与地理环境监测国家测绘地理信息局重点实验室,南昌 330013;3. 东华理工大学测绘工程学院,南昌,330013 |
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| 基金项目： | 国家自然科学基金项目，江西省科技落地计划项目，江西省教育厅科技项目，中国博士后基金项目，江西省中青年教师发展计划访问学者专项项目，江西省远航工程计划项目 |
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| 摘 要： | 针对相位减伪距法只能探测出大周跳而对小周跳无能为力的问题,提出将相位减伪距法应用于双频载波相位周跳的探测与修复中。对采样率为1s、15s和30s不含周跳的观测值分别加入1周到40周不等大小的周跳,采用相位减伪距法分别对加入周跳的观测值进行处理。结果表明,该方法对于采样率为15s和30s的观测值仍然保持其优秀的大周跳探测能力,对采样率为1s的载波相位观测值则能够探测出小于1周的周跳,且其周跳探测分辨率能达到0.3周的高周跳分辨率。与其他周跳探测方法相比,该方法需要的信息量和计算量更小,效率高,算法易于计算机实现,且具有很强的实用性。
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| 关 键 词： | GPS 周跳探测 周跳修复 相位减伪距法 |
A method to cycle-slip detection and repair of dual-frequency carrier phase |
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| GUO Xiang,LU Tieding,PEI Dongdong.A method to cycle-slip detection and repair of dual-frequency carrier phase[J].Science of Surveying and Mapping,2017,42(9). |
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| Authors: | GUO Xiang LU Tieding PEI Dongdong |
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| Abstract: | For the problem that the phase reduce pseudo-range law work well on large cycle-slip while can do nothing about small cycle-slip,then the cycle-slip detection and repair of Dual-frequency carrier phase with phase reduce pseudo-range law is proposed.The authors add different cycle-slips range from 1 to 40 to non cycle-slip signals whose sampling rate are 1 s,15 s and 30 s respectively,using phase reduce pseudo-range law in cycle-slip added signals.Experimental results show that for 15 s and 30 s sampling rate signals,it remains good performance on large cycle-slip.For 1 s',cycle-slip that smaller than one cycle could be found,and reaches 0.3 high cycle-slip resolution.Besides,it is not only need less information and calculation than other methods,but also more convenient,higher efficiency and practical. |
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| Keywords: | GPS cycle-slip detecting cycle-slip repairing phase reduce pseudo-range law |
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