Stable tracking control system for satellite communication antenna for motion carrier

Abstract

The invention relates to a stable tracking control system for a satellite communication antenna for a motion carrier, comprising an embedded antenna controller, an attitude sensor, a high-frequency signal processor, a GPS receiver, a directional integrated driving and controlling motor, a pitching integrated driving and controlling motor, a rolling integrated driving and controlling motor, a mechanical transmission device and a satellite communication antenna. An output shaft of the designed integrated driving and controlling motor can directly drive the antenna so as to simplify the system structure and facilitate the mounting and the maintenance; various main parts of the system and user operation terminals are connected by a field bus mode so as to simplify the connection complexity and benefit the networking work of a plurality of antenna systems; and a novel switching control algorithm based on a switching control theory is designed to improve the control performance of the system. The invention can effectively ensure the indication stability and the tracking performance of the satellite communication antenna on the motion carrier.

Description

technical field [0001] The invention belongs to the satellite communication antenna control technology, in particular to a satellite communication antenna stable tracking control system for a moving carrier. Background technique [0002] With the rapid development of electronic information industry, my country's multimedia broadband satellite communication (including satellite TV) industry is vigorous. In the fields of military operations, public safety, emergency communications, emergency and disaster relief, television broadcasting, and long-distance passenger transportation, the market demand for satellite communications for motion carriers is expanding. The moving carrier communication system is a communication system that implements wireless communication services between mobile terminals, fixed terminals and mobile terminals by installing satellite communication antennas on the moving carrier platform and using the relevant frequency band transponders of geosynchronous...

AI Technical Summary

Problems solved by technology

[0007] Compared with the prior art, the present invention has the remarkable advantages as follows: 1) An integrated drive and control motor with good speed regulation performance is designed to replace the stepper motor, and at the same time, the motor shaft position detection sensor adopts a rotary transformer, so that the system is suitable for strong Shock and strong vibration occasions; 2) A high-performance embedded antenna controller is constructed to automatically adjust the attitude of the antenna on the platform during the movement of the moving carrier to realize the automatic and stable tracking of the satellite by the antenna, which overcomes the traditional antenna system structure The shortcomings of complexity and large size are more conducive to the miniaturization of the system; 3) The main components of the system and the user operation terminal are connected through the field bus, which simplifies the complexity of the system connection and is also beneficial to multiple 4) The antenna has a large operating range, fast attitude adjustment, and high tracking accuracy. The antenna structure adopts a three-axis stabilization system, and the initial capture and recapture time is short.

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