Airborne motion platform magnetic disturbance compensation method without influence of geomagnetic variation
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
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
Active Publication Date: 2016-04-20
哈尔滨工业大学人工智能研究院有限公司
View PDF4 Cites 15 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0003] In order to overcome the problem of failure of the aeromagnetic interference compensation coefficient caused by the change of the geomagnetic field, the present invention provides a magnetic interference compensation method for the aeronautical motion platform that is not affected by the change of the geomagnetic field. Interference compensation coefficient, and applied to eliminate magnetic interference generated by aeronautical platforms during aeromagnetic detection
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
specific Embodiment approach 1
[0091] Specific Embodiment 1: A magnetic interference compensation method for an aeronautical motion platform that is not affected by geomagnetic changes in this embodiment is implemented according to the following steps: figure 1 :
[0092] Step 1, collecting the total magnetic field data to obtain the geomagnetic field;
[0093] Step 2, using the obtained geomagnetic field to obtain a compensation coefficient φ independent of the geomagnetic field;
[0094] Step 3, use the compensation coefficient irrelevant to the geomagnetic field to obtain the magnetic interference compensation result res=H generated by the aviation motion platform total -Ht, where H Total is the total magnetic field, H t for magnetic interference.
specific Embodiment approach 2
[0095] Embodiment 2: This embodiment is different from Embodiment 1, and it is characterized in that the total magnetic field data in Step 1 is collected by a total field magnetometer and a three-component magnetometer.
specific Embodiment approach 3
[0096] Specific embodiment three: present embodiment is different from specific embodiment one or two, and it is characterized in that described step 1 gathers total magnetic field data, obtains geomagnetic field data as follows:
[0097] The total magnetic field measured by the total field magnetometer is H Total , which mainly includes the geomagnetic field He and the three kinds of magnetic disturbance Ht generated by the aircraft motion platform, specifically including the constant field H per , induction field H induce and eddy current field H eddy ,As follows:
[0098] Ht=H per +H induce +H eddy (10)
[0099] in, H p e r = p 1 p 2 p 3 ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
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.
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more