Three-axis stable four-axis tracking ship-mounted mobile mid-communication antenna

Abstract

The invention discloses a three-axis stable four-axis tracking ship-mounted moving mid-communication antenna, which includes a rolling transmission part, including a rolling arm, a large rolling pulley, a rolling synchronous belt, and a small rolling pulley, wherein, The rocker arm is a U-shaped beam structure. The U-shaped beam structure includes a beam. The top of the U-shaped beam beam body web extends outwards with lugs. One end of the rocker arm bracket is fixed on the azimuth rotation bracket, and the other end One end is connected to the beam of the rocker arm through the rotating shaft, and the large roll pulley is fixedly installed on the beam of the roll arm, and the large pulley rotates forward and reverse synchronously with the small roll pulley through the roll synchronous belt, so that the roll arm Left and right shaking; on the basis of the traditional azimuth, pitch and polarization rotation, add a roll axis rotation, so that when the hull faces compound motions such as roll, pitch, and hull steering, the roll transmission part realizes the communication in motion. The composite movement of the antenna and the hull can improve the stability of the ship-borne mobile communication antenna tracking satellites under the extreme swing of the hull.

Description

technical field [0001] The invention relates to a ship-borne mobile communication, in particular to a ship-borne mobile communication antenna, which belongs to the technical field of satellite communication. Background technique [0002] In existing applications, the mobile communication antenna generally adopts two-axis stabilization and three-axis tracking technology, that is, azimuth rotation, pitch rotation and polarization angle adjustment. For example, the patent invention publication number is CN 103560315 A, the invention name is "a satellite antenna in motion" and the authorized announcement number is CN 201994424 U "a new type of satellite communication antenna in motion", and its transmission system mainly includes: The azimuth turntable, pitch support and polarization part track the satellite by rotating the azimuth, pitch and polarization part during the star-seeking process. This kind of star-seeking structure can play the function of finding stars and trackin...

AI Technical Summary

Problems solved by technology

However, there are also certain shortcomings. For example, on ocean-going ships, when encountering strong wind and waves, the ship will face compound motions such as rolling, pitching, and turning of the hull.

In this way, the original mobile communication antenna through azimuth rotation, pitch rotation and polarization adjustment will produce a star loss phenomenon, causing the communication link to be interrupted

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