Deep-space exploration high-gain antenna in-orbit calibration system and method

Abstract

A system and method for on-orbit calibration of high-gain antenna for deep space exploration are provided. A high-gain antenna in-orbit calibration system for deep space exploration adopts a ground station and a ground station receiving detector, the ground station mainly gives a highly sensitive receiver and a large antenna. The ground station receives the single beacon or the residual carrier radio frequency signal transmitted by the detector, finds out the strongest time of the received signal, and inverts the position of the pointing space through the ground station's receiving detector. The invention carries out antenna on-orbit calibration, eliminates high-gain antenna pointing error to ground in long-term flight of the detector on orbit, and improves the gain value of the communication link.

Description

technical field [0001] The invention relates to an on-orbit calibration system and method, in particular to an on-orbit calibration system and method for high-gain antennas for deep space exploration, which can be applied to deep space explorations such as Mars, Venus, and Saturn. Background technique [0002] Deep space exploration relies on high-gain antennas to improve ground-to-ground communication capabilities. During the period when the antenna is in orbit, it needs to receive ground uplink commands, and at the same time send detector-related data to the ground. High-gain antennas are usually large-diameter parabolic antennas. On-orbit sunlight and on-orbit maneuvering will cause stress, which will cause micro-deformation of high-gain antennas and affect the ground pointing accuracy. [0003] Due to the high gain of the high-gain antenna and the narrow beam width pointing to the ground, the pointing accuracy error of the high-gain antenna and the excessive error of th...

AI Technical Summary

Problems solved by technology

High-gain antennas are usually large-diameter parabolic antennas. On-orbit sunlight and on-orbit maneuvering will cause stress, which will cause micro-deformation of high-gain antennas and affect the ground pointing accuracy

[0003] Due to the high gain of the high-gain antenna and the narrow beam width pointing to the ground, the pointing accuracy error of the high-gain antenna and the excessive error of the pointing accuracy of the entire detector system may seriously affect the antenna-to-ground communication

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