Attitude Adjustment Method of Remote Sensing Satellite Calibration to the Moon

Abstract

The invention relates to a moon relative calibrating posture adjustment method by a remote sensing satellite, belonging to the moon imaging technology field and realizing the relative moon calibrating by the satellite. The moon relative calibrating posture adjustment method by a remote sensing satellite comprises steps of determining a relative calibration time quantum meeting the condition according to simulation, determining the speed of the satellite relative to the moon according to on-board orbit forecast data, determining an initial posture angle of the moon relative calibration by the satellite through double-vector posture fixation by combining a vector of a Z axis, along which the satellite is pointed to the moon, determining a posture angular velocity in the process of relatively calibration of the moon according to the anaylsis of the moon imaging parameter, eliminating the remote controller image displacement problem in the process of absolute calibration of the moon, determining the gesture angle of the relative calibration of the moon according to a gesture four element motion equation, and simulating and designing the satellite gesture track planning trace. The designing method of the invention can be applied in the moon relative calibration by the satellite.

Description

technical field [0001] The invention relates to a method for adjusting the relative calibration attitude of a remote sensing satellite to the moon, and belongs to the technical field of moon imaging. Background technique [0002] The on-orbit calibration of my country's remote sensing satellites is still based on real objects on the earth's surface, and the means are relatively simple, and important auxiliary tools such as space stars are rarely used. This is a very important means for improving the imaging quality of my country's remote sensing satellites. . In celestial calibration, daily calibration is widely used. However, because the sunlight is too strong, it generally exceeds the dynamic range or even the tolerance of the remote sensor. The remote sensor cannot directly face the sun, so it is necessary to use a diffuser plate to reflect the sun’s rays, and the diffuser plate is exposed to space radiation for a long time, and it will degrade with life. , and is easily...

AI Technical Summary

Problems solved by technology

This type of imaging method does not take into account the imaging principle of the remote sensor, and the obtained moon image is blurred or even unrecognizable.

Images