Three-axis stable follow-up tracking device of shipborne satellite antenna

Abstract

The invention discloses a three-axis stable follow-up tracking device of a shipborne satellite antenna. The three-axis stable follow-up tracking device of the shipborne satellite antenna comprises a parabolic antenna (1), a roll rotary shaft (2), a pitching rotary shaft (3), as azimuth rotary shaft (4), a support (5) and a base seat (6). Due to the adoption of a three-axis rotation device formed by the components and the technical scheme including that the azimuth rotary shaft is fixedly connected in the center of the bottom of the base seat in a vertically upward mode, the center of a cross beam of the support is rotationally connected at the upper end of the azimuth rotary shaft, the pitching rotary shaft is rotationally and horizontally arranged on the upper portions of two stand supports of the support, the roll rotary shaft is located above the center position of the pitching rotary shaft and in rotational orthogonality connection with the pitching rotary shaft, the parabolic antenna is fixedly connected on the roll rotary shaft, and a feedback system composed of a photoelectric sensor, a position potentiometer, an angular velocity sensor, an electronic compass, a rotary encoder and a global position system (GPS) receiver is adopted to replace a gyro system, the shipborne satellite antenna is enabled to achieve the purposes of being simplified in structure, lowered in cost, and easy to civilianize.

Description

technical field [0001] The invention relates to a follow-up tracking device for carrying and controlling a satellite antenna, specifically, it is used to carry and control a ship-borne satellite antenna installed on a ship, and automatically track and aim at the earth as the ship's course changes and the ship's hull fluctuates. A three-axis stable follow-up tracking device for a ship-borne satellite antenna for synchronous communication satellites to receive satellite information. Background technique [0002] Different from the ground satellite antenna, when the ship-borne satellite antenna is tracking and aiming at the target geosynchronous communication satellite, in addition to overcoming the interference of strong wind and air flow, it also needs to automatically control the parabolic satellite antenna to aim at The target communication satellite performs follow-up tracking of roll, pitch, and azimuth rotation. The existing technology uses an inertial gyro stabilization...

AI Technical Summary

Problems solved by technology

[0002] Different from the ground satellite antenna, when the ship-borne satellite antenna is tracking and aiming at the target geosynchronous communication satellite, in addition to overcoming the interference of strong wind and air flow, it also needs to automatically control the parabolic satellite antenna to aim at The target communication satellite performs follow-up tracking of roll, pitch, and azimuth rotation. The existing technology uses an inertial gyro stabilization system on a three-axis antenna base to control the parabolic satellite antenna to align with the target satellite for follow-up tracking. For example, China Patent "Three-axis Shipborne Antenna Gyro Stabilization Device" 92231278.8; Due to the complex structure and high cost of the gyro system, which is not conducive to the application and promotion of the civilian market, the existing technology has the problems and shortcomings of complex structure, high cost, and difficulty in civilian use

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