Research on localization of platform-based airborne gravity exploration system

LUO Feng; ZHOU Xi-Hua; HU Ping-Hua; JIANG Zuo-Xi; WANG Guan-Xin; QU Jin-Hong; LI Xing-Su; LI Zhao-Liang; ZHAO Ming

doi:10.11720/wtyht.2021.0017

2021 Vol. 45, No. 5

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LUO Feng, ZHOU Xi-Hua, HU Ping-Hua, JIANG Zuo-Xi, WANG Guan-Xin, QU Jin-Hong, LI Xing-Su, LI Zhao-Liang, ZHAO Ming. 2021. Research on localization of platform-based airborne gravity exploration system. Geophysical and Geochemical Exploration, 45(5): 1256-1265. doi: 10.11720/wtyht.2021.0017

Citation:

LUO Feng, ZHOU Xi-Hua, HU Ping-Hua, JIANG Zuo-Xi, WANG Guan-Xin, QU Jin-Hong, LI Xing-Su, LI Zhao-Liang, ZHAO Ming. 2021. Research on localization of platform-based airborne gravity exploration system. Geophysical and Geochemical Exploration, 45(5): 1256-1265. doi: 10.11720/wtyht.2021.0017

Research on localization of platform-based airborne gravity exploration system

1. Key Laboratory of Airborne Geophysics and Remote Sensing Geology, Ministry of Natural Resources, Beijing 100083, China;
2. China Aero Geophysical Survey and Remote Sensing Center for Natural Resources, Beijing 100083, China;
3. Beijing Institute of Automatic Control Equipment, Beijing 100074, China

Received Date: 13 January 2021

Revised Date: 20 October 2021

Publish Date: 15 December 2021

Abstract

Abstract

To meet the accuracy requirements of airborne gravity surveys for deep resource exploration, an airborne gravity survey platform has been developed and integrated based on previous research. The platform system is an airborne gravimeter platform consisting of a three-axis stabilized platform and a quartz flexible pendulum accelerometer. It adopts self-calibration technology and the real-time error estimation and correction technology of platform attitude. Meanwhile, it is equipped with a navigation and positioning system, a vibration reduction system, an unattended system, and data processing software. Flying survey data show that the internal coincidence accuracy of the repeated-line flight data of the airborne gravity survey platform is less than 0.6×10^-5 m/s²(100 s), reaching the international advanced level. Therefore, this platform allows the technology and equipment of airborne gravity surveys to be localized.
- airborne gravimeter platform /
- airborne gravity survey /
- FIR (finite impulse response) low pass filter /
- Kalman filter

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References

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