Satellite gravity gradient determining method and system

A technology of gravity gradient and determination method, which is applied in the measurement of gravitational field, measurement devices, instruments, etc., can solve the problems of large deviation of gravity gradient measurement and low inversion accuracy of gravity field, and achieve the effect of improving inversion accuracy

Active Publication Date: 2018-09-28
中国人民解放军61540部队
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Problems solved by technology

[0005] The purpose of the present invention is to provide a satellite gravity gradient determination method and system to solve the problems of large

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  • Satellite gravity gradient determining method and system
  • Satellite gravity gradient determining method and system
  • Satellite gravity gradient determining method and system

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Embodiment Construction

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051]The purpose of the present invention is to provide a satellite gravity gradient determination method and system, which can improve the measurement accuracy of the gravity gradient and the inversion accuracy of the gravity field.

[0052] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and s...

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Abstract

The invention discloses a satellite gravity gradient determining method and system. The method includes: building the local north-oriented reference frame of a gravity gradient satellite; determiningthree base lines according to the local north-oriented reference frame; building a common-point orthogonal base line model according to the three base lines; determining satellite gravity gradient according to the common-point orthogonal base line model representing a satellite gravity gradient measuring theoretical model. By the method and system, the gravity gradient measuring satellite can be conveniently designed, the measuring errors and key technologies of the gravity gradient measuring satellite can be accurately and comprehensively analyzed, and satellite gravity gradient determining precision is increased.

Description

technical field [0001] The invention relates to the field of satellite gravity gradient measurement, in particular to a method and system for determining satellite gravity gradient. Background technique [0002] The study of the Earth's gravitational field is a huge and complicated task. At present, the measurement methods of gravity field include ground gravity measurement, aviation gravity measurement, ocean gravity measurement and satellite gravity measurement. Among them, the satellite gravity measurement method is the most efficient and can cover the whole world. It is a hot direction of gravity field research; satellite gravity measurement technology is mainly Including satellite altimetry, satellite tracking and satellite gravity gradient measurement. Among them, the satellite gravity gradient measurement technology calculates the earth's gravity field through the gravity gradient value, can observe the gravity field information of medium and high frequency, and obtai...

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Application Information

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IPC IPC(8): G01V7/06
Inventor 肖云王云鹏王丽兵任飞龙
Owner 中国人民解放军61540部队
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