Moving satellite orientation method for fast recovery type satellite communication system uninterrupted in moving

Abstract

The invention relates to a mobile satellite alignment method for fast recovery type mobile communication, Through the introduction of high-precision GPS information, the method uses information of a GPS speed position and the like as reference quantity of an inertial navigation system and carries out information fusion and resolution with the inertial navigation system; on the basis of the prior static alignment dynamic tracking, the method is added with dynamic pedestal alignment technology, namely under the moving state of a carrying vehicle, the method resolves out the azimuth angle of the carrying vehicle relative to the positive northern direction and the attitude angle relative to the horizontal surface through the comprehensive calculation of a peg-top, an accelerometer and other sensors; and the method adopts closed loop extremum scanning technology and realizes the capturing and locking of a satellite under a dynamic environment to keep an antenna stable in the dynamic environment. The method adopts rapid dynamic pedestal alignment technology through laser inertial navigation and can automatically complete the dynamic pedestal alignment function of the inertial navigation system; and the method adopts the closed loop extremum scanning technology and realizes the capturing and locking of the satellite under the dynamic environment to keep the antenna stable under the dynamic environment. Moreover, the mobile satellite alignment method greatly improves the rapid responding capacity of the mobile communication system.

Description

technical field [0001] The invention relates to a fast-recovery on-the-move satellite alignment method, which belongs to the technical fields of inertial navigation, antenna servo tracking and satellite communication. Background technique [0002] The term "Motion Communication" is the abbreviation of "Motion Uninterrupted Satellite Communication System", which is a word with a wide range of meanings. During the process, it can ensure that the electrical axis of the satellite communication antenna is accurately aligned with the antenna tracking platform of the geostationary satellite. On this platform, broadband satellite communication, transmission of video images, voice or / and data information can be realized during carrier movement. [0003] On-the-fly alignment means that when the traffic is in motion due to external interference or long-term occlusion or encountering power outages and other reasons, the signal is interrupted, the antenna deviates from the satellite, an...

AI Technical Summary

Problems solved by technology

During the movement of the carrier, if the star is lost due to long-term occlusion or interference signals, the control system adopts the traditional way of finding stars to align the star during the movement, the movement of the carrier is equivalent to a large amount of interference to the control system, making the The process of re-finding the satellite by the control system is very long, and it has not even been able to re-find the satellite

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