Title:
METHOD AND SYSTEM FOR INDIRECTLY MEASURING GRAVITY
Document Type and Number:
WIPO Patent Application WO/2022/253198
Kind Code:
A1
Abstract:
A method and system for indirectly measuring gravity. The method comprises: gravitational acceleration of a position to be measured is changed on the basis of synthesis affected by universal gravitation generated by a celestial body, universal gravitation generated by the earth, and other inertia force, and a direction change of the gravitational acceleration of the position to be measured is regularly monitored, so that a gravity measurement result of the position to be measured is obtained by means of reverse deduction; when the direction change of the gravitational acceleration is monitored, the direction of the gravity at each time point is measured to obtain direction change observation data of the gravitational acceleration; an approximate value of an acceleration vector caused by the earth at the current position is obtained according to the coordinates of the position itself and serves as an initial solution, direction change estimation data of the gravitational acceleration is calculated, and in combination with the direction change observation data of the gravitational acceleration, iterative linearization solving is carried out to obtain a gravity measurement result.
Inventors:
ZHANG TAO (CN)
Application Number:
PCT/CN2022/096070
Publication Date:
December 08, 2022
Filing Date:
May 30, 2022
Export Citation:
Assignee:
UNIV WUHAN (CN)
International Classes:
G01V7/00; G06F17/12; G06F17/16
Domestic Patent References:
| WO2013036156A1 | 2013-03-14 |
Foreign References:
| CN113311495A | 2021-08-27 | |||
| CN108267792A | 2018-07-10 | |||
| CN111366984A | 2020-07-03 | |||
| US20140083186A1 | 2014-03-27 |
Attorney, Agent or Firm:
WUHAN KEHAO INTELLECTUAL PROPERTY ATTORNEYS(SPECIAL GENERAL PARTNERSHIP) (CN)
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