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物探与化探  2015, Vol. 39 Issue (S1): 67-71    DOI: 10.11720/wtyht.2015.S1.15
  国家高技术研究发展计划项目(2011AA060501)专题 本期目录 | 过刊浏览 | 高级检索 |
基于SINS/GNSS的捷联式车载重力测量研究
于瑞航1, 蔡劭琨1, 吴美平1, 曹聚亮1, 张开东1, 王蓬2
1. 国防科学技术大学机电工程与自动化学院, 湖南 长沙 410073;
2. 中国国土资源航空物探遥感中心, 北京 100083
A study of SINS/GNSS strapdown ground vehicle gravimetry test
YU Rui-Hang1, CAI Shao-Kun1, WU Mei-Ping1, CAO Ju-Liang1, ZHANG Kai-Dong1, WANG Peng2
1. College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China;
2. China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China
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摘要 

2015年3月,由国防科技大学独立研发的SGA-WZ02重力仪在湖南长沙进行了一次车载重力测量试验,目的是为了检验、评估该重力仪应用于车载重力测量的可行性和精度水平.该重力仪系统主要由捷联惯性导航系统(SINS)、差分GNSS系统以及数据记录系统组成.试验路线为长沙市区东部的一条长约35km的高速公路,测量过程中平均车速为40km/h,本次试验共得到3条重复测线数据以进行内符合精度评估.为了评估重力异常外符合精度,使用CG-5高精度地面重力仪对该测线区域进行了测量,建立了外部重力参考数据库.本次车载试验结果表明,重复测线的内符合精度为1.64mGal/1.1km,1.12mGal/1.7km,外符合精度为2.33mGal/1.1km,1.77mGal/1.7km.

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Abstract

In March 2015,a ground vehicle gravimetry test was implemented in eastern Changsha to assess the repeatability and accuracy of ground vehicle SINS/GNSS gravimeter-SGA-WZ02.The gravity system developed by NUDT consisted of a Strapdown Inertial Navigation System (SINS),differential Global Navigation Satellite System (GNSS) and a data logging subsystem.A south-north profile of 35 km along the highway in eastern Changsha was chosen and three repeated available measurement lines were obtained.The average speed of a vehicle is 40 km/h.To assess the external ground gravity disturbances,the authors built precise ground gravity data by CG-5 precise gravimeter as the reference.Gravity results in this test from repeated lines show that the internal accuracy is 1.64 mGal for half wavelengths 1.1 km and is 1.12mGal for 1.7 km. The Root-Mean-Square (RMS) of difference between calculated gravity data and reference data is about 2.33 mGal/1.1 km,and 1.77 mGal/1.7 km.

收稿日期: 2015-12-04      出版日期: 2015-12-31
:  P223+.3  
基金资助:

国家自然科学基金项目(61273055);国家高技术研究发展计划("863"计划)项目(2013AA063902)

作者简介: 于瑞航(1988-),男,山东莱西人,博士研究生,主要从事组合导航、重力测量技术研究.
引用本文:   
于瑞航, 蔡劭琨, 吴美平, 曹聚亮, 张开东, 王蓬. 基于SINS/GNSS的捷联式车载重力测量研究[J]. 物探与化探, 2015, 39(S1): 67-71.
YU Rui-Hang, CAI Shao-Kun, WU Mei-Ping, CAO Ju-Liang, ZHANG Kai-Dong, WANG Peng. A study of SINS/GNSS strapdown ground vehicle gravimetry test. Geophysical and Geochemical Exploration, 2015, 39(S1): 67-71.
链接本文:  
https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2015.S1.15      或      https://www.wutanyuhuatan.com/CN/Y2015/V39/IS1/67

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