Airborne motion platform magnetic disturbance compensation method without influence of geomagnetic variation

A motion platform and compensation method technology, applied in the field of aeromagnetic detection, can solve problems such as failure of aeromagnetic interference compensation coefficients
CN105509737AActive Publication Date: 2016-04-20哈尔滨工业大学人工智能研究院有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
哈尔滨工业大学人工智能研究院有限公司
Publication Date
2016-04-20

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Abstract

The invention relates to an airborne motion platform magnetic disturbance compensation method without influence of geomagnetic variation and belongs to the field of aeromagnetic detection. According to the invention, the failure problem of aeromagnetic disturbance compensation factor due to variation of geomagnetic field in the prior art is solved. The method of the invention comprises the following steps: Step 1, acquiring data of magnetic total field to obtain geomagnetic field; Step 2, obtaining compensation factor phi unrelated to the geomagnetic field by the utilization of the obtained geomagnetic field; and Step 3, obtaining magnetic disturbance compensation result res=Htotal-Ht generated by an airborne motion platform by the utilization of the compensation factor phi unrelated to the geomagnetic field. The method of the invention is applied in eliminating magnetic disturbance generated by the airborne motion platform during aeromagnetic detection. By the method, solving precision of compensation factor estimation algorithm is raised.
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Description

technical field

[0001] The invention relates to the field of aeromagnetic detection, in particular to a magnetic interference compensation method for an aeronautical motion platform that is not affected by geomagnetic changes. Background technique

[0002] The magnetic field measured by the magnetometer installed on the aerial platform is the superposition of the geomagnetic field and the magnetic interference generated by the aerial platform. The magnetic interference generated by the aerial platform must be eliminated to obtain an effective magnetic field signal. Aeromagnetic interference compensation is a technology to eliminate the magnetic interference generated by the aerial platform in the process of aeromagnetic detection. By analyzing the type and nature of the magnetic interference of the aviation motion platform itself, the mathematical model of the aeromagnetic interference is established, and then the total magnetic field and its three-component data are measure...

Claims

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