标题:An accuracy-improvement method for GPS/INS kinematic levelling for use in linear engineering surveying projects

作者:Zhang, L (Zhang, Liang); Mao, QZ (Mao, Qingzhou); Li, QQ (Li, Qingquan); Zhang, P (Zhang, Pin)

来源出版物:MEASUREMENT卷:54页:22-30DOI:10.1016/j.measurement.2014.03.026出版年:AUG 2014

Web of Science 核心合集中的 "被引频次":0

被引频次合计:0

摘要:This paper proposes a high-efficiency and continuous levelling method for linear objects, such as highways and railways, by applying a vehicle-borne GPS/INS kinematic surveying system which integrates the Global Positioning System (GPS) and the Inertial Navigation System (INS). Generally, the raw ellipsoid height directly outputted by GPS/INS needs to be transformed to the local orthometric height. However, because of various systematic errors and random errors, such as the measuring error and the quasi-geoid model error, the accuracy of the orthometric height would rarely meet engineering requirements. To solve this problem, a novel sliding least-squares collocation (SLSC) model based on ground control points was constructed to improve the accuracy of GPS/INS kinematic levelling. Two data sets collected from the Chang Ying highway located in Jilin province, China, were used to validate the proposed method. The experimental results indicate that the proposed method improves the trajectory points' orthometric height accuracy by at least 160%. (C) 2014 Elsevier Ltd. All rights reserved.

地址:[Zhang, Liang; Mao, Qingzhou] Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, Wuhan 430079, Hubei, Peoples R China.

[Zhang, Liang; Li, Qingquan] Shenzhen Univ, Shenzhen Key Lab Spatial Temporal Smart Sensing &, Shenzhen 518052, Guangdong, Peoples R China.

[Zhang, Pin] Wuhan Univ, Sch Geodesy & Geodet, Wuhan 430079, Hubei, Peoples R China.

通讯作者地址:Mao, QZ (通讯作者),Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, Wuhan 430079, Hubei, Peoples R China.

电子邮件地址:zhang.liangtrc@gmail.com; qzhmao@whu.edu.cn; qqli@whu.edu.cn; zpkb1555@qq.com