Magnetic anomaly location method for spacecraft

A positioning method and spacecraft technology, applied to the size/direction of the magnetic field, the use of electromagnetic devices for magnetic field measurement, magnetic gradient measurement, etc., can solve problems such as large amounts of data and prone to solution divergence, and achieve high precision and low calculation volume Small and reduce the effect of introducing errors

Active Publication Date: 2020-12-01
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Problems solved by technology

[0003] At present, there is no better method to calculate the location and information of magnetic anomalies. The main method is to use the Euler equation combined with the full tensor of the magnetic field to solve the location of magnetic anomalies. This method requires more data and is prone to divergence of solutions.

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  • Magnetic anomaly location method for spacecraft
  • Magnetic anomaly location method for spacecraft
  • Magnetic anomaly location method for spacecraft

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Embodiment Construction

[0024] The spacecraft magnetic anomaly locating method of the present invention is described below with reference to the accompanying drawings, but the description is only exemplary and is not intended to limit the protection scope of the present invention.

[0025] see figure 1 , figure 1 A flow chart of the spacecraft magnetic anomaly locating method of the present invention is shown. The spacecraft magnetic anomaly positioning method of the present invention comprises the following steps,

[0026] Place the spacecraft in the magnetic shielding room, establish a measurement space, generally a square, the space includes the entire spacecraft, and establish a coordinate system in the space.

[0027] Divide the measurement space into several grids, so that each surface of the measurement space is composed of many squares, see for example figure 2 , where the higher the accuracy requirement, the smaller the divided grid, and vice versa.

[0028] Use the magnetometer to meas...

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Abstract

The invention discloses a spacecraft magnetic anomaly positioning method. The spacecraft magnetic anomaly positioning method comprises the following steps that a spacecraft measurement model space isarranged, a coordinate system is established, the model space is subjected to grid processing, an equation is established by measuring magnetic anomaly data on a surface of a space model and using vertical gradient tensors of four adjacent measurement points to calculate the position of an anomaly point, then a plurality of position points are obtained, the grid where dense points are located is aanomaly position, and the magnitude of a magnetic anomaly magnetic moment is calculated. The spacecraft magnetic anomaly positioning method is simple and easy to implement, and the calculation resultis reliable.

Description

technical field [0001] The invention belongs to the technical field of spacecraft magnetic measurement and calculation, and in particular relates to the measurement and calculation of magnetic anomalies of spacecraft products and objects. Background technique [0002] The magnetic environment of the earth and interstellar space is one of the important environments that affect the operation of the spacecraft. The degree of influence is related to the magnetism of the spacecraft itself. In order to meet various performance requirements, the spacecraft needs to use a certain amount of magnetic materials and have certain magnetic properties. magnetic field. Secondly, changes in the external magnetic field will cause changes in the magnetic characteristic parameters of the spacecraft, especially for satellites that conduct magnetic field research, it is necessary to limit the satellite's own magnetic field, especially the magnetic field strength and stability of the magnetic fiel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/12G01R33/022
CPCG01R33/022G01R33/12
Inventor 徐超群易忠孟立飞王斌刘超波黄魁
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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