| 利用三频组合观测值进行GPS周跳探测与修复 |
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| 引用本文： | 王帅,高井祥.利用三频组合观测值进行GPS周跳探测与修复[J].测绘科学,2012,37(5):40-42. |
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| 作者姓名： | 王帅 高井祥 |
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| 作者单位： | 中国矿业大学国土环境与灾害监测国家测绘局重点实验室,江苏省资源环境信息工程重点实验室,江苏徐州221116 |
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| 基金项目： | 国家自然科学基金(41074010);江苏省自然科学基金项目(BK2009099);煤炭资源与安全开采国家重点实验室开放研究基金资助项目(08KF07) |
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| 摘 要： | 本文基于多频组合观测值探测周跳的原理,利用模拟的GPS L5数据与L1、L2进行不同的线性组合,选取(0,1,-1)、(-1,8,-7)和(1,-6,5)3个波长较长、线性不相关且几何距离无关、观测噪声较小的组合,对实测数据人为加入了大小不同的周跳组合,周跳探测结果表明,三频甚至多频组合观测值能够实时探测各种情况下的周跳。
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| 关 键 词： | 多频组合观测值 GPS L 周跳探测与修复 数据预处理 |
GPS cycle slip detection and repair using three-frequency combination observations |
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| WANG Shuai
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GAO Jing-xiang.GPS cycle slip detection and repair using three-frequency combination observations[J].Science of Surveying and Mapping,2012,37(5):40-42. |
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| Authors: | WANG Shuai GAO Jing-xiang |
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| Institution: | (China University of Mining and Technology,Key Laboratory for Land Environment and Disaster Monitoring of SBSM/Jiangsu Key Laboratory of Resources and Environmental Information Engineering,Jiangsu Xuzhou 221116,China) |
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| Abstract: | Based on the principle of cycle-slip detection using multi-frequency combined observations,different linear combinations using L1,L2 and simulated L5 were introduced in the paper.The combinations of(0,1,-1),(-1,8,-7) and(1,-6,5) were employed as they possess longer effective wavelength,linear-independent,geometry-independent and less noise.Moreover,measured data was added on different combinations with large and small cycle-slip.Results showed that three-frequency even multi-frequency combined observation could detect cycle-slip real-time in any condition. |
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| Keywords: | multi-frequency combined observations GPS L5 cycle-slip detection and repair data pre-processing |
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