北斗非差数据MW/TECR组合周跳探测与修复

金属矿山 ›› 2014, Vol. 43 ›› Issue (12): 152-157.

北斗非差数据MW/TECR组合周跳探测与修复

王浩^1,2，王坚^1,2，鲍国³

1.中国矿业大学环境与测绘学院，江苏徐州 221116；2.国土环境与灾害监测国家测绘地理信息局重点实验室，江苏徐州221116；3.中国人民解放军空军勤务学院，江苏徐州 221008

出版日期:2014-12-15 发布日期:2015-07-23
基金资助:
* 国家高技术研究发展计划（863计划）项目（编号：2013AA12A201），国家自然科学基金青年基金项目（编号：D040103），江苏高校优势学科建设工程项目（编号：SZBF2011-6-B35）。

Cycle-slip Detection and Repair by Using MW/TECR Combination for Beidou Un-differenced Data

Wang Hao^1,2，Wang Jia^1,2，Bao Guo³

1.School of Environment Science & Spatial Informatics，China University of Mining and Technology，Xuzhou 221116，China;2.NASG Key Laboratory of Land Environment and Disaster Monitoring，Xuzhou 221116，China；3.Air Force Service Academy of Peoples Liberation Army，Xuzhou 221008，China

Online:2014-12-15 Published:2015-07-23

摘要/Abstract

摘要： 矿区边坡变形监测在矿山可持续安全开采中发挥着重要的作用。在利用GNSS（Global navigation satellite system）技术对矿区边坡进行高精度监测时，必须准确地对GNSS相位观测数据进行周跳探测与修复。提出了利用MW/TECR（Melbourne Wubbena/Total electron contents rate）组合对北斗非差相位数据进行周跳实时探测与修复的方法。首先选取MW/TECR组合作为周跳检测量，对北斗导航卫星的B1和B2载波上出现的周跳进行探测,然后以最小1范数作为周跳修复准则，以一定的搜索半径对周跳估值的最小二乘解进行搜索匹配修复周跳,最后利用某露天矿区实测北斗相位观测数据进行周跳探测与修复试验。结果表明，MW/TECR组合可以有效地探测与修复原始相位观测数据中所添加的各种周跳，显著地改善北斗相位观测数据质量，对于提高矿区边坡监测的精度具有一定的作用。

关键词: GNSS, 北斗导航卫星, 非差数据, MW/TECR组合, 周跳探测与修复

Abstract: Mine slope deformation monitoring plays an important role in the sustainable security exploitation of mines.The cycle-slips of the Global Navigation Satellite System(GNSS) original carrier phase observation data must be detected and repaired，when using GNSS technology to measure and monitor the mine slope with high precision.The method that combines with melbourne wubbena(MW) and total electron contents rate(TECR) is proposed to detect and repair the cycle-slips of Beidou carrier phase un-differenced observation data.Firstly，the MW/TECR is taken as the cycle-slip detectable amount to detect the cycle-slips accurately in the Beidou B1 and B2 carrier phase.Then，the least squares solutions of cycle-slip valuations can be repaired by using certain search radius to search and match cycle-slip by taking minimum 1 norm as the cycle-slip repair principle.Finally，experiments are carried out to test the cycle-slip detection and repair on small cycle-slips，large cycle-slips，insensitive cycle-slips and successive cycle-slips based on the actual Beidou un-differenced observation data of 1 s and 15 s sampling interval of an open pit mine.The experimental result shows that，the MW/TECR combination can detect and repair any added cycle-slip combination of the original observation data effectively.Therefore，using the MW/TECR combination to detect and repair cycle slip can improve the quality of Beidou phase observation data effectively，and has great significance to improve the accuracy and reliability of mining complex terrain slope monitoring.

Key words: GNSS, Beidou navigation satellite, Un-differenced data, MW/TECR combination, Detection and repair of Cycle-slip

王浩, 王坚, 鲍国. 北斗非差数据MW/TECR组合周跳探测与修复[J]. 金属矿山, 2014, 43(12): 152-157.

WANG Hao, WANG Jian, BAO Guo. Cycle-slip Detection and Repair by Using MW/TECR Combination for Beidou Un-differenced Data[J]. Metal Mine, 2014, 43(12): 152-157.

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