一种INS辅助的PPP周跳探测方法

doi:10.11947/j.AGCS.2018.20170315

测绘学报 ›› 2018, Vol. 47 ›› Issue (11): 1457-1465.doi: 10.11947/j.AGCS.2018.20170315

一种INS辅助的PPP周跳探测方法

黎蕾蕾^1,2, 杨盛^1,3, 丁学文⁴, 陈华⁵, 陈渠森⁵, 柳景斌³, 孙红星³

1. 重庆大学航空航天学院, 重庆 400044;
2. 重庆大学光电技术与系统教育部重点实验室, 重庆 400044;
3. 武汉大学测绘遥感信息工程国家重点实验室, 湖北武汉 430079;
4. 中国兵器工业集团北方信息控制研究院集团有限公司, 江苏南京 211153;
5. 武汉大学测绘学院, 湖北武汉 430079

收稿日期:2017-06-27 修回日期:2018-08-15 出版日期:2018-11-20 发布日期:2018-11-29
作者简介:黎蕾蕾(1981-),男,博士,讲师,研究方向为定位定向系统。E-mail:lill@cqu.edu.cn
基金资助:
国家重大研发计划（2016YFB0502204）；重庆市基础与前沿研究计划（cstc2016jcyjA0300）；中央高校基本科研业务费项目（106112017CDJPT120003）；湖北省重大创新项目（2018AAA070）；湖北省自然科学基金创新群体项目（2018CFA007）

A Method of INS-aided Cycle-slip Detection for PPP

LI Leilei^1,2, YANG Sheng^1,3, DING Xuewen⁴, CHEN Hua⁵, CHEN Qusen⁵, LIU Jingbin³, SUN Hongxing³

1. College of Aerospace Engineering, Chongqing University, Chongqing 400044, China;
2. Key Laboratory of Optoelectronic Technology and Systems of the Ministry of Education of China, Chongqing University, Chongqing 400044, China;
3. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China;
4. North Information Control Research Academy Group Co. Ltd., Nanjing 211153, China;
5. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China

Received:2017-06-27 Revised:2018-08-15 Online:2018-11-20 Published:2018-11-29
Supported by:
The National Key Research Development Program of China (No. 2016YFB0502204);The Chongqing Research Program of Basic Research and Frontier Technology (No. cstc2016jcyjA0300);The Fundamental Research Funds for the Central Universities (No. 106112017CDJPT120003);The Technology Innovation Program of Hubei Province (No. 2018AAA070);The Natural Science Fund of Hubei Province (No. 2018CFA007)

摘要/Abstract

摘要： PPP/INS组合导航系统中，接收机载波相位观测值由于接收机高动态、卫星低仰角、信号被遮挡等原因，往往发生周跳。周跳不仅会影响PPP定位精度，而且可能会导致模糊度参数重新初始化以致数十分钟才能重新收敛。针对以上问题，本文提出利用惯性导航系统（INS）辅助PPP宽巷周跳探测的新策略，通过具有短时高精度的INS信息，消除宽巷组合中的站星几何位置，克服传统MW方法中码伪距噪声及多路径误差的影响。试验表明，INS辅助的宽巷周跳探测方法能够精确识别各种宽巷小周跳。将该方法与无几何距离（GF）组合方法相结合，可以实现对双频等周周跳和特殊周跳（5/4、9/7等）的探测，具有较高探测精度，并可应用于实时周跳探测。

关键词: 周跳探测, PPP, INS, 宽巷组合, GF组合

Abstract: Due to the problem of high receiver dynamics, low satellite elevation, or the obstruction along the signal path, the carrier phase measurements in PPP/INS are often interrupted. Cycle slip will reduce the accuracy of positioning and may force the ambiguities to re-initialize that normally take 10 minutes or more. A new cycle-slip detection method for PPP is presented here utilizing the high-precision INS information, instead of pseudoranges to remove satellites geometric distances in wide-lane combination. This new algorithm is tested in a vehicle experiment and the results show that it has excellent sensitivity to cycle slip even small ones. By combination with the GF method, this method can detect the isoperimetric and special cycle slip pairs (such as 5/4, 9/7) with high accuracy. It can also be used for real-time cycle slip detection.

Key words: cycle-slip detection, PPP, INS, wide lane, GF

中图分类号:

P228

黎蕾蕾, 杨盛, 丁学文, 陈华, 陈渠森, 柳景斌, 孙红星. 一种INS辅助的PPP周跳探测方法[J]. 测绘学报, 2018, 47(11): 1457-1465.

LI Leilei, YANG Sheng, DING Xuewen, CHEN Hua, CHEN Qusen, LIU Jingbin, SUN Hongxing. A Method of INS-aided Cycle-slip Detection for PPP[J]. Acta Geodaetica et Cartographica Sinica, 2018, 47(11): 1457-1465.

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一种INS辅助的PPP周跳探测方法

A Method of INS-aided Cycle-slip Detection for PPP

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