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Beidou double-antenna rapid orientation method

A dual-antenna and Beidou technology, applied in the field of navigation, can solve the problems of complex equipment composition, accumulation of error time, and large weather effects, and achieve the effects of simple application, simple composition, and low price.

Pending Publication Date: 2020-06-30
SICHUAN AEROSPACE SYST ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to quickly and accurately realize the positioning and orientation of the aircraft, the traditional method of domestic engineers is to use inertial groups, geomagnetism and other methods to achieve real-time calculation of positioning and orientation. Defects such as accumulation

Method used

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  • Beidou double-antenna rapid orientation method
  • Beidou double-antenna rapid orientation method
  • Beidou double-antenna rapid orientation method

Examples

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Embodiment

[0024] A Beidou double-antenna rapid orientation method, this embodiment is to arrange the dual antennas on the flight carrier, measure the phase difference of the Beidou carrier signal by obtaining each antenna, and measure the angular position of the carrier coordinate system relative to the local geographic coordinate system in real time, through Mathematical derivation is used to calculate the attitude parameters of the carrier, which specifically includes the following steps:

[0025] Such as figure 1 As shown, using the Beidou navigation system to orient the flight carrier requires two antennas and a receiver, that is, the Beidou dual-antenna receiver. Install a pair of Beidou antennas on the flight carrier, assuming that the installation position of the antennas is and The center line of the double antenna coincides with the axis of the flight carrier. Since the distance between the Beidou satellite and the antenna is relatively long, it can be assumed that the Bei...

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Abstract

The invention discloses a Beidou double-antenna rapid orientation method. The method comprises the steps: arranging two antennas and a receiver on a flight carrier; solving the distance difference between the double antennas and the same satellite; determining the antenna close to the head of the flight carrier as a main antenna to obtain a transformation matrix; if the flight carrier can receivesignals of three Beidou satellites at the same time, solving a baseline vector; and solving a yaw angle and a pitch angle of the flight carrier according to the calculated baseline vector to obtain the course and the positioning orientation of the flight carrier. The method has the advantages of simple measurement equipment composition, low price, no influence of weather, no accumulation of errorsalong with time, simplicity and convenience in implementation and application and the like.

Description

technical field [0001] The invention relates to the technical field of navigation, in particular to a Beidou dual-antenna rapid orientation method. Background technique [0002] In order to quickly and accurately realize the positioning and orientation of the aircraft, the traditional method of domestic engineers is to use inertial groups, geomagnetism and other methods to achieve real-time calculation of positioning and orientation. accumulated defects. Contents of the invention [0003] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a fast orientation method for Beidou dual antennas. The present invention arranges two antennas on the flight carrier, then obtains the carrier phase measurement values ​​of each antenna, and then solves the Each baseline vector between antennas, and then obtain the attitude of the carrier, has the advantages of simple composition of measurement equipment, low price, no influence ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/54G01P13/02
CPCG01S19/54G01P13/025
Inventor 何小旭江余敏候俊亮郑宜强杨俊波高雅青梁国用
Owner SICHUAN AEROSPACE SYST ENG INST
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