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基于陆地的捷联惯导系统/全球导航卫星系统重力测量用于台湾地下水资源探测的可行性分析

A Feasibility Analysis of Land-Based SINS/GNSS Gravimetry for Groundwater Resource Detection in Taiwan.

作者信息

Chiang Kai-Wei, Lin Cheng-An, Kuo Chung-Yen

机构信息

Department of Geomatics, National Cheng Kung University, No. 1, University Road, Tainan 701, Taiwan.

出版信息

Sensors (Basel). 2015 Sep 29;15(10):25039-54. doi: 10.3390/s151025039.

DOI:10.3390/s151025039
PMID:26426019
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4634441/
Abstract

The integration of the Strapdown Inertial Navigation System and Global Navigation Satellite System (SINS/GNSS) has been implemented for land-based gravimetry and has been proven to perform well in estimating gravity. Based on the mGal-level gravimetry results, this research aims to construct and develop a land-based SINS/GNSS gravimetry device containing a navigation-grade Inertial Measurement Unit. This research also presents a feasibility analysis for groundwater resource detection. A preliminary comparison of the kinematic velocities and accelerations using multi-combination of GNSS data including Global Positioning System, Global Navigation Satellite System, and BeiDou Navigation Satellite System, indicates that three-system observations performed better than two-system data in the computation. A comparison of gravity derived from SINS/GNSS and measured using a relative gravimeter also shows that both agree reasonably well with a mean difference of 2.30 mGal. The mean difference between repeat measurements of gravity disturbance using SINS/GNSS is 2.46 mGal with a standard deviation of 1.32 mGal. The gravity variation because of the groundwater at Pingtung Plain, Taiwan could reach 2.72 mGal. Hence, the developed land-based SINS/GNSS gravimetry can sufficiently and effectively detect groundwater resources.

摘要

捷联惯性导航系统与全球导航卫星系统（SINS/GNSS）的集成已应用于陆地重力测量，并已被证明在重力估计方面表现良好。基于毫伽级重力测量结果，本研究旨在构建并开发一种包含导航级惯性测量单元的陆地SINS/GNSS重力测量装置。本研究还对地下水资源探测进行了可行性分析。使用包括全球定位系统、全球导航卫星系统和北斗导航卫星系统在内的GNSS数据多组合对运动速度和加速度进行的初步比较表明，在计算中三系统观测比两系统数据表现更好。对SINS/GNSS导出的重力与使用相对重力仪测量的重力进行比较，结果也表明两者吻合良好，平均差值为2.30毫伽。使用SINS/GNSS对重力扰动进行重复测量的平均差值为2.46毫伽，标准差为1.32毫伽。台湾屏东平原因地下水引起的重力变化可达2.72毫伽。因此，所开发的陆地SINS/GNSS重力测量能够充分有效地探测地下水资源。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/ec334a2f5ee6/sensors-15-25039-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/fbd14097f405/sensors-15-25039-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/49cbef238c80/sensors-15-25039-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/65723af01244/sensors-15-25039-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/1f3bef22a8b7/sensors-15-25039-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/a3a5aba07ffe/sensors-15-25039-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/ccafe99fe022/sensors-15-25039-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/2716b5bfab47/sensors-15-25039-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/ec334a2f5ee6/sensors-15-25039-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/fbd14097f405/sensors-15-25039-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/49cbef238c80/sensors-15-25039-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/65723af01244/sensors-15-25039-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/1f3bef22a8b7/sensors-15-25039-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/a3a5aba07ffe/sensors-15-25039-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/ccafe99fe022/sensors-15-25039-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/2716b5bfab47/sensors-15-25039-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2396/4634441/ec334a2f5ee6/sensors-15-25039-g008.jpg

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