一种基于双频非差GNSS相位数据的周跳实时探测与修复方法
发布时间：2018-08-26 19:01
【摘要】：在TurboEdit方法的基础上,提出一种双频非差GNSS相位数据周跳实时探测与修复算法。在MW组合中,根据卫星高度角进行定权并结合移动窗口递推计算宽巷模糊度。在电离层残差组合的基础上进行历元间二次差分,以更好地减弱电离层残差对周跳检验量的影响。当探测出存在周跳的历元之后,采用搜索法进行修复。通过采用30s的静态数据和1s的动态数据,并在观测数据中模拟加入小周跳、大周跳对该方法分别进行测试。结果表明,该方法可正确实现周跳的实时探测与修复。
[Abstract]:Based on the TurboEdit method, a real time cycle slip detection and repair algorithm for dual frequency nondifferential GNSS phase data is proposed. In the MW combination, the weight is determined according to the satellite altitude angle and the ambiguity of wide lane is calculated by recursion of moving window. Based on the ionospheric residuals combination, the quadratic difference between epoch is carried out to better reduce the influence of ionospheric residuals on the circumferential slip detection. When the epoch with cycle slip is detected, the search method is used to repair it. By using the static data of 30s and the dynamic data of 1 s, and adding small cycle jump to the observed data, the method is tested by the large cycle jump. The results show that this method can correctly detect and repair cycle slips in real time.
【作者单位】： 长安大学地质工程与测绘学院;地理信息工程国家重点实验室;
【基金】：中国博士后科学基金(2016M592733) 地理信息工程国家重点实验室开放基金(SKLGIE2015-M-2-4) 中央高校基本科研业务费专项(310826151049)~~
【分类号】：P228.4
[Abstract]:Based on the TurboEdit method, a real time cycle slip detection and repair algorithm for dual frequency nondifferential GNSS phase data is proposed. In the MW combination, the weight is determined according to the satellite altitude angle and the ambiguity of wide lane is calculated by recursion of moving window. Based on the ionospheric residuals combination, the quadratic difference between epoch is carried out to better reduce the influence of ionospheric residuals on the circumferential slip detection. When the epoch with cycle slip is detected, the search method is used to repair it. By using the static data of 30s and the dynamic data of 1 s, and adding small cycle jump to the observed data, the method is tested by the large cycle jump. The results show that this method can correctly detect and repair cycle slips in real time.
【作者单位】： 长安大学地质工程与测绘学院;地理信息工程国家重点实验室;
【基金】：中国博士后科学基金(2016M592733) 地理信息工程国家重点实验室开放基金(SKLGIE2015-M-2-4) 中央高校基本科研业务费专项(310826151049)~~
【分类号】：P228.4
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