Research on the Gravity Disturbance Compensation Terminal for High-Precision Position and Orientation System
The Position<b> </b>and Orientation System (POS) is the core device of high-resolution aerial remote sensing systems, which can obtain the real-time object position and collect target attitude information. The goal of exceeding 0.015°/0.003° of its real-time heading/attitude measurement...
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doaj-5edacedf3d9c489c87954b70597719482020-11-25T03:01:11ZengMDPI AGSensors1424-82202020-08-01204932493210.3390/s20174932Research on the Gravity Disturbance Compensation Terminal for High-Precision Position and Orientation SystemZhuangsheng Zhu0Hao Tan1Yue Jia2Qifei Xu3Research Institute for Frontier Science, Beihang University, Beijing 100191, ChinaResearch Institute for Frontier Science, Beihang University, Beijing 100191, ChinaResearch Institute for Frontier Science, Beihang University, Beijing 100191, ChinaResearch Institute for Frontier Science, Beihang University, Beijing 100191, ChinaThe Position<b> </b>and Orientation System (POS) is the core device of high-resolution aerial remote sensing systems, which can obtain the real-time object position and collect target attitude information. The goal of exceeding 0.015°/0.003° of its real-time heading/attitude measurement accuracy is unlikely to be achieved without gravity disturbance compensation. In this paper, a high-precision gravity data architecture for gravity disturbance compensation technology is proposed, and a gravity database with accuracy better than 1 mGal is constructed in the test area. Based on the “Block-Time Variation” Markov Model (B-TV-MM), a gravity disturbance compensation device is developed. The gravity disturbance compensation technology is applied to POS products for the first time, and is applied in the field of aerial remote sensing. Flight test results show that the heading accuracy and attitude accuracy of POS products are improved by at least 6% and 16%, respectively. The device can be used for the gravity disturbance compensation of various inertial technology products.https://www.mdpi.com/1424-8220/20/17/4932POSgravity compensationINS/GNSSvertical deflectiongravity measurement |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zhuangsheng Zhu Hao Tan Yue Jia Qifei Xu |
spellingShingle |
Zhuangsheng Zhu Hao Tan Yue Jia Qifei Xu Research on the Gravity Disturbance Compensation Terminal for High-Precision Position and Orientation System Sensors POS gravity compensation INS/GNSS vertical deflection gravity measurement |
author_facet |
Zhuangsheng Zhu Hao Tan Yue Jia Qifei Xu |
author_sort |
Zhuangsheng Zhu |
title |
Research on the Gravity Disturbance Compensation Terminal for High-Precision Position and Orientation System |
title_short |
Research on the Gravity Disturbance Compensation Terminal for High-Precision Position and Orientation System |
title_full |
Research on the Gravity Disturbance Compensation Terminal for High-Precision Position and Orientation System |
title_fullStr |
Research on the Gravity Disturbance Compensation Terminal for High-Precision Position and Orientation System |
title_full_unstemmed |
Research on the Gravity Disturbance Compensation Terminal for High-Precision Position and Orientation System |
title_sort |
research on the gravity disturbance compensation terminal for high-precision position and orientation system |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2020-08-01 |
description |
The Position<b> </b>and Orientation System (POS) is the core device of high-resolution aerial remote sensing systems, which can obtain the real-time object position and collect target attitude information. The goal of exceeding 0.015°/0.003° of its real-time heading/attitude measurement accuracy is unlikely to be achieved without gravity disturbance compensation. In this paper, a high-precision gravity data architecture for gravity disturbance compensation technology is proposed, and a gravity database with accuracy better than 1 mGal is constructed in the test area. Based on the “Block-Time Variation” Markov Model (B-TV-MM), a gravity disturbance compensation device is developed. The gravity disturbance compensation technology is applied to POS products for the first time, and is applied in the field of aerial remote sensing. Flight test results show that the heading accuracy and attitude accuracy of POS products are improved by at least 6% and 16%, respectively. The device can be used for the gravity disturbance compensation of various inertial technology products. |
topic |
POS gravity compensation INS/GNSS vertical deflection gravity measurement |
url |
https://www.mdpi.com/1424-8220/20/17/4932 |
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