Unattended satellite ground station tracking control system

Abstract

The invention discloses an unattended satellite ground station tracking control system. The system is suitable for task execution of satellite constellation satellite-ground communication, and specifically comprises an orbit prediction module, a satellite-ground azimuth angle calculation module, a servo control module, an antenna automatic zeroing module and a fault detection module. The orbit data of a satellite in the target constellation can be automatically updated and forecasted in real time, the antenna pointing is automatically controlled to realize the optimal satellite-ground communication gain, the antenna pointing can be automatically returned to zero after the task is finished, and the real-time antenna pointing monitoring can be performed during the task proceeding period. According to the invention, the traditional working mode of manually operating the ground station is changed, the communication effect is optimal, and the reliability is high.

Description

technical field [0001] The invention belongs to the satellite ground station system technology, in particular to an unattended satellite ground station tracking control system. Background technique [0002] Today, with the rapid development of micro-nano satellites, especially the rapid development of micro-nano satellite constellations, the ground station's automatic prediction of the satellite transit time and antenna pointing tracking of the target has become a basic requirement for future satellite-to-ground communication tasks. [0003] The unattended satellite ground station tracking control system is a multi-functional unattended ground tracking system that can realize automatic satellite transit forecast and antenna automatic tracking. Antenna automatic tracking control technology mainly involves steps such as satellite transit forecast, antenna pointing angle calculation, antenna pointing control, control state reset, automatic monitoring and alarm. These technolog...

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Problems solved by technology

[0004] At present, this kind of technological invention is relatively limited to satellite orbit prediction, calculation of satellite transit time, and antenna pointing device design, etc., and most of them are in the application category of one satellite, one station. The orbit prediction and servo control commonly used by domestic amateur radio satellite ground stations There are many systems, and the commonly used software includes HamRadioDeluxe, Novafor Windows, SatPC32, Orbitron, etc. These software are all developed by foreign companies, and there will be more restrictions on use

At present, there is no solution for the automatic zeroing function and fault detection function of the antenna at home and abroad, and the satellite ground station still needs a series of preparatory work and post-zeroing operations when the satellite ground station starts the satellite-to-earth communication task, which is not automatic enough and cannot meet the current requirements. Demand for Rapid Development of Microsatellites and Microsatellite Constellations

[0005] At present, the satellite ground station system technology includes single-module technologies such as ground station measurement and tracking, ground station antenna pointing device, etc. The ground station measurement and tracking can control the antenna to point to the target satellite more accurately during the satellite transit process, but in the initial stage of satellite entry. Orbit prediction is required to position satellites, and the system is complex and large

At present, ground stations at home and abroad focus on the one-station-one-satellite measurement and control mode, and there is a lack of unattended one-station multi-satellite system technology

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