Satellite magnetic test external interference magnetic field closed-loop control method under geomagnetic environment

A closed-loop control and external interference technology, applied in the field of satellite measurement, can solve problems such as affecting the accuracy of satellite magnetic experiments, and achieve high economic results

Active Publication Date: 2015-04-22
SHANGHAI INST OF SATELLITE EQUIP
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that, when the satellite magnetic moment is tested under the geomagnetic environment, the external interference magnetic field affects the accuracy of the satellite magnetic test. Reasonable layout between the magnetic field sensor and the monitoring external interference magnetic field sensor, new data processing method and control software use, to solve the synchronization, equivalence and consistency between the signal received by the external interference field source sensor and the satellite magn...

Method used

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  • Satellite magnetic test external interference magnetic field closed-loop control method under geomagnetic environment

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Embodiment

[0109] Step 1: Satellite magnetic test acquisition and monitoring magnetic sensor layout in geomagnetic environment

[0110] according to figure 2 Arrange satellite magnetic field acquisition sensor array A and satellite magnetic field acquisition sensor array B, and arrange monitoring sensor A and monitoring sensor B;

[0111] Collection sensor layout distance rules:

[0112]

[0113] Monitoring sensor layout distance rules:

[0114] ①According to the satellite magnetic moment evaluation value M (Am 2 ) and the external disturbance fluctuation field value B3 , calculate the distance R(m) between the sensor and the satellite;

[0115] ②The measured distance when the influence of the satellite magnetic field on it is zero under different working conditions;

[0116] according to figure 2 The direction of each axis of the monitoring sensor (three-component) and the acquisition sensor (three-component) is adjusted for consistency; the Y-axis of the sensor is consistent wi...

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Abstract

The invention discloses a satellite magnetic test external interference magnetic field closed-loop control method under the geomagnetic environment. An external interference magnetic field value affecting satellite magnetic test accuracy is controlled under 3 nT, and under the condition that large zero-magnetism test equipment is not established, effective closed-loop control, automatic tracking, compensation and correction are conducted on a satellite magnetic test local area dynamic external interference magnetic field are achieved under the geomagnetic environment, and the 24-hour satellite quasi-zero-magnetism environment test condition under the geomagnetic environment is acquired, wherein automatic compensation is conducted on random interference values of geomagnetic field fluctuation and an industrial magnetic field.

Description

technical field [0001] The invention relates to the technical field of satellite measurement, in particular to a closed-loop control method for external interference magnetic field of satellite magnetic measurement in a geomagnetic environment. Background technique [0002] There are many factors in the geomagnetic field that affect the accuracy of satellite magnetic experiments. If the errors caused by magnetic measuring instruments, control equipment, and testing methods are not considered, and only from the perspective of changes in the magnetic environment, the external interference magnetic field affecting satellite magnetic measurement mainly includes the geomagnetic field. Fluctuations and ambient magnetic field disturbances. The increase of the background noise of the geomagnetic field will drown out part of the real signal of the measured satellite magnetic field, especially when measuring some satellites with small magnetic moment. The environmental magnetic field...

Claims

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Application Information

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IPC IPC(8): G01R33/00
Inventor 吴卫权王钦柳金生王浩孙晓春谢永权王韬
Owner SHANGHAI INST OF SATELLITE EQUIP
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