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System and method for eliminating residual magnetic interference of micro-satellite

A micro-satellite and magnetic interference technology, applied in the field of magnetic exploration of geophysical satellites, can solve the problems that the magnetometer probe installation method is not suitable for micro-satellites, the accuracy cannot meet the demand, and the length of the extension rod is long, so as to improve the magnetic field measurement accuracy, The effect of eliminating magnetic field interference and small calculation amount

Active Publication Date: 2018-11-30
BEIJING INST OF AEROSPACE CONTROL DEVICES
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Problems solved by technology

However, compared with ordinary satellites, the magnetic moment of microsatellites is smaller, and the accuracy of the residual magnetism estimation of the microsatellite platform by using the dual-probe differential measurement method cannot meet the requirements, and the length of the extension rod used in the traditional method is longer, and the installation method of the magnetometer probe not suitable for tiny satellites

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  • System and method for eliminating residual magnetic interference of micro-satellite
  • System and method for eliminating residual magnetic interference of micro-satellite
  • System and method for eliminating residual magnetic interference of micro-satellite

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0041] Such as figure 1 As shown, the structure diagram of the system for eliminating residual magnetic interference of tiny satellites provided by the present invention includes a first vector magnetometer probe 101, a second vector magnetometer probe 105, a magnetometer electronic box 106, a first cable 107, a second wire Cable 108, first boom 102, second boom 104 and satellite platform 103;

[0042] The first extension rod 102 and the second extension rod 104 are respectively installed on both sides of the satellite platform 103, and the center of the satellite platform 103 is collinear with the first extension rod 102 and the second extension rod 104, as figure 2 As shown, the first vector magnetometer probe 101 and the second vector magnetometer probe 105 are respectively fixed at the end...

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Abstract

The invention provides a system and method for eliminating the residual magnetic interference of a micro-satellite. The residual magnetism of a micro-satellite platform is modeled as a magnetic dipole, vector magnetometer probes are separately arranged at the tail ends of two symmetrical extending rods on the satellite surface, the internal relation between magnetic field gradient integral and magnetic field values is used for estimating the residual magnetic interference of the satellite platform, and geomagnetic field values at the position of a satellite body is given. The system and methodfor eliminating the residual magnetic interference of the micro-satellite use the method of the magnetic field gradient integral to present a satellite platform residual magnetism estimation method,and the purposes that the satellite platform residual magnetic interference can be eliminated and the accuracy of spatial geomagnetic field measurement is improved are achieved.

Description

technical field [0001] The invention belongs to the field of geophysical satellite magnetic prospecting, and relates to a system and method for eliminating magnetic interference of a micro-satellite platform based on magnetic field gradient measurement. Background technique [0002] Satellite magnetic survey, as an important geomagnetic field detection method, has been widely used in the field of geophysical satellite magnetic prospecting. The existing satellite magnetometry method fixes the magnetometer on the satellite extension pole, and reduces the influence of the residual magnetism of the satellite body on the measurement results of the magnetometer by increasing the distance between the sensing part of the magnetometer and the satellite platform body. Improvement, only relying on this method has been unable to effectively eliminate the interference of the satellite platform body residual magnetism, therefore, it is of great significance to use effective methods to cal...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/40G01V3/38
CPCG01V3/38G01V3/40
Inventor 桑建芝王学锋寇军卢向东邓意成孙晓洁代亚东李洁张笑楠曹建勋
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES
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