Three-axis stabilized and four-axis tracked shipborne on-the-move antenna

Abstract

The invention discloses a three-axis stabilized and four-axis tracked shipborne on-the-move antenna which comprises a transverse rolling transmission part, wherein the transverse rolling transmission part comprises a transverse rocking arm, a transverse rolling big belt pulley, a transverse synchronous belt and a transverse rolling small belt pulley, the transverse rocking arm is of an U-shaped beam structure, the U-shaped beam structure comprises a cross beam, the top of a web plate of an U-shaped beam body is provided with a lug in an outward extension way, one end of a transverse rocking arm support is fixedly arranged on a directional rotation support, the other end of the transverse rocking arm support is connected with the cross beam of the transverse rocking arm through a rotation shaft, the transverse rolling big belt pulley is fixedly arranged on the cross beam of the transverse rocking arm, and the transverse rolling big belt pulley and the transverse rolling small belt pulley synchronously and positively / inversely rotate through the transverse rolling synchronous belt to lead the transverse rocking arm to shake from side to side. The rotation of a transverse rocking shaft is added on the basis of the traditional directional, pitching and polarization rotation to lead a boat body to face with composite motion such as rolling, pitching and steering, the composite motion, adaptive to the boat body, of the on-the-move antenna is achieved by the transverse rolling transmission part, and the satellite tracking stability of the shipborne on-the-move antenna during the extreme swinging of the boat body is improved.

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 CN103560315A, the invention name is "a satellite antenna in motion" and the authorized announcement number is CN201994424U "a new type of satellite communication antenna in motion". The transmission system mainly includes: azimuth turntable, pitch The supporting and polarizing parts track satellites by turning the azimuth, pitch and polarizing parts during the star-seeking process. This kind of star-seeking structure can play the function of finding stars and tracking satellite...

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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