| 一种基于BDS-3四频数据的周跳探测与修复方法 |
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| 引用本文： | 吕 震,王振杰,聂志喜,徐晓飞,张远帆.一种基于BDS-3四频数据的周跳探测与修复方法[J].大地测量与地球动力学,2022,42(7):728-733. |
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| 作者姓名： | 吕 震 王振杰 聂志喜 徐晓飞 张远帆 |
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| 摘 要： | 为充分发挥BDS-3四频观测信息的优势，提出一种周跳探测与修复方法。首先对无几何相位组合和无几何无电离层组合系数进行优选，联合3个无几何相位组合和1个无几何无电离层组合对不同周跳进行探测，然后使用最小二乘法估计周跳浮点解，最后采用LAMBDA方法进一步得到周跳整数解。经过BDS-3四频观测数据验证可知，本文方法可有效、快速地识别各类周跳，并对其进行修复。
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| 关 键 词： | 四频数据 周跳探测与修复 无几何相位组合 无几何无电离层组合 |
A Cycle-Slip Detection and Repair Method Based on BDS-3 Quad-Frequency Data |
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| Lü Zhen,WANG Zhenjie,NIE Zhixi,XU Xiaofei,ZHANG Yuanfan.A Cycle-Slip Detection and Repair Method Based on BDS-3 Quad-Frequency Data[J].Journal of Geodesy and Geodynamics,2022,42(7):728-733. |
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| Authors: | Lü Zhen WANG Zhenjie NIE Zhixi XU Xiaofei ZHANG Yuanfan |
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| Abstract: | To make full use of the advantages of BDS-3 quad-frequency observation information, we develop a cycle-slip detection and repair method for quad-frequency observations. First, we properly select the combination coefficients of the geometry-free phase combination and geometry-free ionosphere-free combination. We combine three geometry-free phase combinations as well as one geometry-free ionosphere-free combination to detect different cycle slips. Then, we use the least-square method to estimate the cycle-slip float solutions. Finally, we adopt the LAMBDA method to further obtain the cycle-slip integer solutions. The BDS-3 quad-frequency observation data verifies that the proposed method can effectively and quickly identify various cycle slips and repair them. |
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| Keywords: | quad-frequency data cycle-slip detection and repair geometry-free phase combination geometry-free and ionosphere-free combination |
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