一种双频载波相位周跳探测与修复方法

发布时间：2018-06-28 03:25

本文选题：GPS + 周跳探测　；参考：《测绘科学》2017年09期

【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。
[Abstract]:In view of the problem that the phase de-pseudo-range method can only detect the large cycle slip but not the small one, a new method is proposed to detect and repair the dual-frequency carrier phase cycle slip. When the sampling rate is 1 s-1 / 15 s and 30 s / s without cycle slips, the cycle slips of 1 week to 40 weeks are added, respectively, and the observed values are processed by the method of phase de-pseudo-range. The results show that the method still maintains its excellent large cycle slip detection ability for the observed values of 15 s and 30s, and can detect the cycle slip less than 1 week for the carrier phase observations with a sampling rate of 1 s. And its cycle slip detection resolution can reach 0.3 weeks high cycle slip resolution. Compared with other cycle slip detection methods, this method requires less information and computation, has high efficiency, is easy to implement by computer, and has strong practicability.
【作者单位】：东华理工大学测绘工程学院;黄河勘测规划设计有限公司测绘信息工程院;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;
【基金】：国家自然科学基金项目(41374007;41464001) 江西省科技落地计划项目(KJLD12077) 江西省教育厅科技项目(GJJ13457) 中国博士后基金项目(2012M511962) 江西省中青年教师发展计划访问学者专项项目(2012-132) 江西省远航工程计划项目(2013-132)
【分类号】：P228.4

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