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Communication-in-motion antenna multi-platform heading and attitude determination method based on transfer alignment

A technology for transferring alignment and determination methods, which is applied in directions such as navigation through velocity/acceleration measurement, and can solve problems such as carrier deformation errors and difficulty in measuring errors.

Active Publication Date: 2020-03-27
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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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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  • Communication-in-motion antenna multi-platform heading and attitude determination method based on transfer alignment
  • Communication-in-motion antenna multi-platform heading and attitude determination method based on transfer alignment
  • Communication-in-motion antenna multi-platform heading and attitude determination method 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 communication-in-motion antenna multi-platform heading and attitude determination method based on transfer alignment. According to the method, an inertial measurement unit isinstalled on a satellite communication-in-motion antenna, multi-platform navigation calculation is carried out, and error compensation is carried out on a strapdown navigation algorithm result of theinertial measurement unit by using output information of navigation equipment on an antenna installation carrier and a transfer alignment algorithm; and finally, a multi-platform heading and attitudedata validity evaluation method is used to obtain heading and attitude information beneficial to improving the tracking performance of the antenna. The multi-platform heading and attitude determination method is established by combining the azimuth angle and signal intensity information of the antenna, the tracking performance of the antenna is improved, and the method has the advantages of no need of manual 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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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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