Imaging Capability Analysis and Attitude Control Index Analysis Method of Optical Imaging Small Satellites

Abstract

The invention provides a method for analyzing the imaging capability and attitude control index requirements of optical imaging small satellites. Starting from the characteristics of optical imaging small satellites, firstly, according to the known parameters of the optical imaging load (including sensors and lenses), the satellite load is calculated. Imaging performance parameters, including sub-satellite point pixel resolution, ground imaging width, and field of view angle; then, according to the calculated imaging performance parameters of the satellite load, the determination accuracy of the satellite attitude during normal imaging of the load, Indicators such as attitude pointing accuracy and stability accuracy require calculation models. The method is clear, correct and fast, and can provide design basis for overall satellite designers, payload subsystem designers and attitude control system designers, and has a good application prospect in the field of satellite design and development.

Description

technical field [0001] The invention relates to the field of spacecraft design, in particular to a method for analyzing imaging capability and attitude control index requirements of optical imaging small satellites. Background technique [0002] For optical imaging small satellites, their imaging capability is related to whether the payload design meets the requirements for use. At the same time, in order to ensure the imaging quality, corresponding index requirements will be put forward for the attitude control system of the satellite platform. Therefore, the analysis of imaging capability and attitude control index requirements is a very important part of the overall design of optical imaging small satellites, which directly determine the success or failure of satellite applications. The analysis of imaging capabilities involves core indicators such as satellite ground pixel resolution, swath width, and field of view. The imaging quality puts forward corresponding require...

AI Technical Summary

Problems solved by technology

[0003] In the overall design stage of optical imaging small satellites, according to different missions, functions and usage requirements of satellites, the design process is relatively complicated, and generally requires multiple rounds of iterations, so it is difficult to give a standard imaging capability analysis and attitude Control metrics require analysis, so there is little published literature on this

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