Title:
METHOD FOR POST-COMPENSATION OF MOTION ERROR OF ROTATING ACCELEROMETER GRAVITY GRADIOMETER
Document Type and Number:
WIPO Patent Application WO/2020/140378
Kind Code:
A1
Abstract:
Provided is a method for post-compensation of the motion error of a rotating accelerometer gravity gradiometer: in gravity gradient exploration on a moving base, recording the angular motion and linear motion of a gravity gradiometer; after exploration ends, on the basis of an analytical model of the rotating accelerometer gravity gradiometer, removing the angular motion and linear motion errors from the output data of the gravity gradiometer; using a post-event motion error compensation method, while ensuring that the accuracy of the gravity gradiometer is unchanged, greatly reducing the accuracy requirements of the gravity gradiometer with respect to an online error compensation system, thereby simplifying the circuit and mechanical design of the rotary accelerometer gravity gradiometer and making the rotating accelerometer gravity gradiometer simpler and lower-cost.
Inventors:
CAI TIJING (CN)
YU MINGBIAO (CN)
YU MINGBIAO (CN)
Application Number:
PCT/CN2019/089238
Publication Date:
July 09, 2020
Filing Date:
May 30, 2019
Export Citation:
Assignee:
UNIV SOUTHEAST (CN)
International Classes:
G01V7/00
Foreign References:
| CN109766812A | 2019-05-17 | |||
| CN108873093A | 2018-11-23 | |||
| CN104374401A | 2015-02-25 | |||
| CN108931824A | 2018-12-04 | |||
| US6658935B1 | 2003-12-09 |
Other References:
QIAN XUEWU; CAI TIJING: "Data Processing Method for Rotating Accelerometer Gravity Gradiometer", JOURNAL OF SOUTHEAST UNIVERSITY NATURAL SCIENCE EDITION, vol. 46, no. 4, pages 708 - 712, XP009521858, ISSN: 1001-0505, DOI: 10.3969/j.issn.1001-0505.2016.04.006
WANG SHUFU ; SUN FENG ; HAO YANLING ; QIN HONGLEI: "Study on Scale Factor Adjusting and Error Compensation for Rotating Accelerometer Gravity Gradiometer", JOURNAL OF CHINESE INERTIAL TECHNOLOGY, vol. 8, no. 4, pages 31 - 35,45, XP009521860, ISSN: 1005-6734, DOI: 10.13695/j.cnki.12-1222/o3.2000.04.006
WANG SHUFU ; SUN FENG ; HAO YANLING ; QIN HONGLEI: "Study on Scale Factor Adjusting and Error Compensation for Rotating Accelerometer Gravity Gradiometer", JOURNAL OF CHINESE INERTIAL TECHNOLOGY, vol. 8, no. 4, pages 31 - 35,45, XP009521860, ISSN: 1005-6734, DOI: 10.13695/j.cnki.12-1222/o3.2000.04.006
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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