普适型GNSS双频数据的周跳探测与修复方法  

Research on Cycle Slip Detection and Repair Method for Universal GNSS Dual-Frequency Data

作　　者：刘宁[1] 刘世焕 吴小利 浦彦彦 LIU Ning;LIU Shihuan;WU Xiaoli;PU Yanyan(School of Geological Engineering and Geomatics,Chang'an University,Xi’an 710054,China;China First High-Way Engineering,CCCC Xiamen Testing Technology Co.Ltd,Xiamen 361000,China;Shaanxi Satellite Application Technology Center of Natural Resources,Xi’an 710002,China)

机构地区：[1]长安大学地质工程与测绘学院,西安710054 [2]中交一公局厦门检测技术有限公司,厦门361000 [3]自然资源陕西省卫星应用技术中心,西安710002

出　　处：《大地测量与地球动力学》2024年第10期1003-1009,共7页Journal of Geodesy and Geodynamics

基　　金：陕西省自然科学基础研究计划(2022JM-164);国家重点研发计划(2020YFC1512001)。

摘　　要：通过分析宽巷相位减窄巷伪距和无几何距离组合周跳探测方法存在的问题,提出一种考虑GNSS卫星高度角因子且适用于普适型GNSS观测数据的周跳探测方法。在探测出周跳发生的历元位置后,利用基于空间搜索和目标函数最小准则的方法进行周跳修复,并选取安置在甘肃临夏公路旁一滑坡隐患处的普适型GNSS接收机所观测的不同高度角卫星数据对提出的周跳处理方法进行验证。结果表明,该周跳探测与修复方法能实现不同高度角卫星载波相位数据中周跳的准确探测与修复,并减弱GNSS数据观测误差对周跳检验量的影响,对普适型GNSS观测数据的周跳探测与修复具有可行性。By analyzing the problems existing in the cycle slip detection method of wide-lane phase minus narrow-lane pseudorange and geometry-free combination,we propose a cycle slip detection method that considers the GNSS satellite elevation factor and is suitable for universal GNSS observation data.After detecting the epoch position where the cycle slip occurs,we use the method based on spatial search and minimum criterion of objective function to repair cycle slip.We then validate the proposed cycle slip processing method by selecting satellite data of different elevations observed from the universal GNSS receiver located at a landslide hazard near the Linxia Highway in Gansu Province.The results show that the proposed method is effective.the cycle slip detection and repair method can realize the accurate detection and repair of cycle slips in carrier phase data with different elevations and can reduce the influence of GNSS data observation error on the cycle slip test.It is feasible for the cycle slip detection and repair in universal GNSS observation data.

关 键 词：普适型GNSS 周跳 卫星高度角 历元间差分 目标函数 

分 类 号：P228[天文地球—大地测量学与测量工程]