Antenna Structure System of Parallel Mechanism in Super Hemisphere Working Airspace

Abstract

The invention relates to an antenna structure system of a parallel mechanism. The antenna structure system is formed by linking an antenna reflector with an antenna base rack; the antenna base rack is formed as follows: six servo motors or hydraulic oil cylinders respectively drive six linear stretching driving devices; the upper ends of the six linear stretching driving devices are hinged with an upper platform through spherical hinges, and the lower ends of the six linear stretching driving devices are hinged with a lower platform through Hooke hinges (universal hinges); and the upper platform and the lower platform respectively are hexagonal, so as to form the antenna structure system based on 6 / 6-SPU type Stewart parallel mechanism. With the adoption of the antenna structure system of the parallel mechanism, provided by the invention, remote sensing and telemetering signals and data of aircrafts, such as a satellite and a carrier rocket can be entirely solved; the antenna has the capacity of overhead airspace continuous tracing, and can reach the super-hemisphere working airspace, namely, the random pose continuous tracking with a pitch angle of -1 to 181 degrees and a direction of 0-360 degrees (assuming that the pitch angle (at a horizontal plane position) of an antenna is 0 degree or 180 degrees) can be realized.

Description

Technical field [0001] The invention relates to an antenna structure system based on a 6 / 6-SPU type Stewart parallel mechanism. Antenna structure system for aerospace remote sensing, satellite "three remote" technology (remote sensing, telemetry, remote control technology) and satellite communication. The antenna structure system, the servo control system, and the feeder and feeder system (referred to as: sky, servo, and feed) form an antenna system to realize remote sensing, telemetry, and remote control information acquisition and instructions, and to realize satellite communication information transmission and processing. In particular, it can obtain telemetry signals and data in the effective airspace of satellites, launch vehicles and other aircraft, realize a continuous tracking antenna system without overhead "blind spots", and satisfactorily solve the antenna's super-hemispherical working airspace, that is, pitch: -1°~181°, azimuth : Continuous tracking of any pose fr...

AI Technical Summary

Problems solved by technology

[0005] The traditional classic remote sensing and telemetry low-orbit satellite antenna design generally adopts the elevation-azimuth (EL-AZ type) antenna seat, which has an overhead "blind cone area", and the elevation-azimuth antenna cannot be placed in the satellite's overhead "blind cone area". Continuously track satellites in the airspace to realize the demand for uninterrupted and continuous signal work

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