Satellite gravity field inversion method and system based on bidirectional integration

A gravity field and satellite technology, which is applied in the field of satellite gravity field inversion based on "two-way integration", can solve the problems of poor normal equation information and large deviation of estimated potential coefficients, and achieve the effects of weakening the influence and improving accuracy

Pending Publication Date: 2020-09-25
中国人民解放军61540部队
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Problems solved by technology

The one-way error accumulation effect of orbital integration makes the normal equation information obtained b

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  • Satellite gravity field inversion method and system based on bidirectional integration
  • Satellite gravity field inversion method and system based on bidirectional integration
  • Satellite gravity field inversion method and system based on bidirectional integration

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[0065] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0066] The purpose of the present invention is to provide a satellite gravity field inversion method and system based on "two-way integration" to greatly reduce the influence of system errors on the satellite gravity field inversion result and improve the accuracy of satellite gravity field inversion.

[0067] The basic idea of ​​a satellite gravity field inversion method and system based on "two-way integration" provided by the present inv...

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Abstract

The invention relates to a satellite gravity field inversion method and system based on bidirectional integration. The satellite gravity field inversion method based on bidirectional integration comprises the steps of obtaining an initial epoch and a tail epoch of an orbit in a to-be-inverted satellite gravity field; obtaining a satellite gravity field inversion model; and inputting the initial epoch and the tail epoch into the satellite gravity field inversion model to complete inversion of the satellite gravity field. According to the satellite gravity field inversion method and system basedon bidirectional integration, the satellite gravity field inversion model is adopted to invert the satellite gravity field, the influence of system errors on the satellite gravity field inversion result can be greatly weakened, and the satellite gravity field inversion precision is improved.

Description

technical field [0001] The invention relates to the technical field of satellite gravity field inversion, in particular to a satellite gravity field inversion method and system based on "two-way integration". Background technique [0002] The earth's gravitational field is the basic physical field that reflects the distribution, movement and change of the earth's matter. Accurately determining the fine structure of the earth's gravitational field and its temporal and spatial changes plays an extremely important role and significance in the research of military defense construction, national economy, space science, earth science and related disciplines. The study of the earth's gravitational field is a basic task, and it is also the research core and hotspot in the field of geodesy. Satellite gravity measurement has opened up a new era for human beings to detect the earth's gravity field, and is considered to be the most valuable and promising high-efficiency gravity detecti...

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Application Information

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IPC IPC(8): G01V7/06
CPCG01V7/06
Inventor 肖云王丽兵成伟赵玉
Owner 中国人民解放军61540部队
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