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Multi-platform Heading Attitude Determination Method for Communication-in-Motion Antenna Based on Transfer Alignment

A technology for transferring alignment and determination methods, applied in directions such as navigation through speed/acceleration measurement, which can solve problems such as carrier deformation errors and difficult error measurement, and achieve the effects of improving accuracy, improving reliability, and good adaptability

Active Publication Date: 2022-03-01
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] c) Random carrier deformation errors are generated when the antenna mounting carrier moves, and these errors are difficult to measure

Method used

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  • Multi-platform Heading Attitude Determination Method for Communication-in-Motion Antenna Based on Transfer Alignment
  • Multi-platform Heading Attitude Determination Method for Communication-in-Motion Antenna Based on Transfer Alignment
  • Multi-platform Heading Attitude Determination Method for Communication-in-Motion Antenna Based on Transfer Alignment

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Embodiment Construction

[0054] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0055] attached figure 1 It includes a reflective surface, a first position, a second position, an azimuth drive module 4, and a carrier navigation device 5. Taking the A-E (azimuth-pitch) two-axis pedestal antenna as an example, the multi-platform attitude determination algorithm of the antenna includes the following steps:

[0056] (1) Multi-platform calculation method of autonomous inertial measurement unit

[0057] attached figure 1 Among them, the inertial navigation unit of the antenna is arranged at the first position and the second position, and optionally one of them is installed with an autonomous inertial measurement unit, and the inertial navigation unit can calculate the attitude of the antenna reflector, and the navigation device 5 is a rough calculation carrier such as an aircraft , tanks, ...

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Abstract

The invention discloses a multi-platform heading attitude determination method of a communication antenna in motion based on transfer alignment. The method installs the inertial measurement unit on the antenna in motion and performs multi-platform navigation calculation, and uses the output information of the navigation equipment on the antenna installation carrier and the transfer alignment algorithm to compensate the error of the strapdown navigation algorithm result of the inertial measurement unit. Finally, the multi-platform attitude data validity evaluation method is used to obtain the attitude information that is beneficial to the antenna to improve the tracking performance. The present invention combines the antenna azimuth angle and signal strength information to establish a multi-platform heading attitude determination method to improve the tracking performance of the antenna, and has the advantages of no need for human operation, simple implementation and wide application range.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a novel method for determining the attitude of an antenna in motion. Background technique [0002] With the development of communication measurement and control, the application market of antennas has expanded, and in most applications, it is required to achieve precise measurement and control of antenna pointing. In particular, in the fields of vehicle-mounted, ship-mounted, and airborne satellite communications in motion, most antenna installation carriers have relatively accurate navigation equipment such as inertial navigation systems, which are used to measure the attitude information of the carrier, and can also Provided to the antenna to compensate for the pointing angle deviation caused by the movement of the carrier. In the prior art, the antenna directly uses the attitude information of the carrier, and there are the following problems: [0003] a) The up...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/18
CPCG01C21/18
Inventor 秦超张硕白海龙
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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