An antenna alignment system for communication vehicle station based on Beidou dual-mode terminal

Abstract

The invention discloses a communication vehicle-mounted station antenna alignment system based on a Beidou dual-mode terminal. It involves Beidou message technology, Beidou positioning and orientation technology and scatter link calculation technology. It obtains the latitude and longitude of the communication vehicle station and the vehicle body orientation through Beidou positioning and orientation, and then calculates the communication azimuth angle according to the latitude and longitude of the communication vehicle stations at both ends, and outputs the antenna control signal to the antenna control unit before and after the antenna is driven to point to the communication position, realizing the communication system. Quick activation. The invention has the characteristics that the alignment angle is not affected by geomagnetism and magnetic declination, and the operation is simple and convenient.

Description

technical field [0001] The invention relates to an antenna alignment system for a vehicle-mounted communication station in the communication field, and has high practical value for a vehicle-mounted communication system that has good mobility and needs to be opened quickly. Background technique [0002] The antenna alignment method of the existing communication vehicle-mounted station is an antenna alignment method based on compass positioning. In this antenna alignment method, the electronic compass indicates the azimuth of the vehicle body at the local station, and the communication azimuth is calculated from the latitude and longitude obtained from the first-generation Beidou satellite and the input local magnetic declination. Because the electronic compass is greatly affected by the magnetic field, the indicated angle deviates from the real angle, and the local magnetic declination is difficult to obtain accurately, so the calculated communication azimuth will have a lar...

AI Technical Summary

Problems solved by technology

Because the electronic compass is greatly affected by the magnetic field, the indicated angle deviates from the real angle, and the local magnetic declination is difficult to obtain accurately, so the calculated communication azimuth will have a large deviation; There are fewer positioning satellites than the Beidou 2nd generation positioning and orientation system, and its positioning accuracy is worse than that of the Beidou 2nd generation positioning and orientation system

The antenna alignment method based on compass positioning has the problem of poor antenna alignment accuracy

Images