On-orbit Calibration System and Method for High Gain Antenna in Deep Space Exploration

Abstract

The invention provides an on-orbit calibration system and method for a high-gain antenna for deep space detection. The high-gain antenna for deep space detection on-orbit calibration system uses a ground station and a ground station receiving detector. The ground station mainly provides high-sensitivity Receiver and large antenna, the ground station receiving detector transmits a single beacon or residual carrier radio frequency signal, finds out the moment when the signal is the strongest, and inverts the pointing space position at this moment through the ground station receiving detector. The invention carries out the on-orbit calibration of the antenna, eliminates the pointing error of the high-gain antenna to the ground during the long-term flight of the detector on the 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

Images