| 双频载波相位求差法在周跳探测与修复中的应用 |
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| 引用本文： | 刘国超,黄张裕,冯剑桥,徐秀杰.双频载波相位求差法在周跳探测与修复中的应用[J].海洋测绘,2013(6):29-32. |
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| 作者姓名： | 刘国超 黄张裕 冯剑桥 徐秀杰 |
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| 作者单位： | 河海大学地球科学与工程学院,江苏南京210098 |
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| 摘 要： | 载波相位测量中小周跳的探测与修复一直是高精度GPS定位研究中的热点领域。分析了L1和L2载波相位观测值的关系,通过相邻历元的相位观测值求差来探测周跳,并结合伪距差分约束条件来确定及修复周跳。结合实例分析,证明该方法可以有效地探测并修复周跳,并通过Matlab编程实现了算法的程序化。
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| 关 键 词： | 全球定位系统 载波相位 周跳 相位求差 伪距差分约束法 |
Application of Dual-frequency Differenced Carrier-phase Method in Cycle Slip Detecting and Repairing |
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| LIU Guochao,HUANG Zhangyu,FENG Jianqiao,XU Xiujie.Application of Dual-frequency Differenced Carrier-phase Method in Cycle Slip Detecting and Repairing[J].Hydrographic Surveying and Charting,2013(6):29-32. |
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| Authors: | LIU Guochao HUANG Zhangyu FENG Jianqiao XU Xiujie |
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| Institution: | ( School of Earth Sciences and Engineering, Hehai University, Nanjing 210098, China) |
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| Abstract: | Small cycle slip detection and repairing in carrier-phase measurement has always been a hot field in the study of high precision GPS positioning. Based on the analysis of L1 and L2 carrier-phase observation value, using the difference between adjacent epoch phase observation value to detect cycle slip, and combining the pseudorange differential constraints to identify and repair the cycle slip. Through the case analysis, the method can effectively detect and repair the cycle slip is proved, and through the Matlab algorithm is programmed. |
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| Keywords: | ：GPS carrier phase cycle slip phase differencing pseudorange difference constraint method |
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