Method for implementing in-orbit maneuvering imaging task of agile earth observing satellite

Abstract

The invention discloses a method for implementing an in-orbit maneuvering imaging task of an agile earth observing satellite. Command parameters required for maneuvering imaging are transmitted to a satellite by a user through a satellite-ground link; the satellite can generate a command set automatically; an on-satellite computer stores commands by adopting a two-dimensional index data structure of a task number and time information and simultaneously is matched with a program control data block which is noted on the ground surface and is used for an agile maneuvering task; and the operation of adding task, deleting the tasks, operating the tasks and interrupting the tasks are realized according to the requirements of a ground user. In addition, the on-satellite computer can perform backup and storage on the commands relative to the tasks through an internal emergency data recovery module, and the commands can be recovered after the on-satellite computer is reset or shut down, so that the overall satellite continuously executes the tasks according to a predetermined mode. By the method, the application performance of the satellite can be improved greatly with low cost; moreover, the capability of dealing with in-orbit urgent tasks and state change of the satellite can be enhanced; the dependence on ground surface measurement and control is reduce; and the safety and the reliability are improved.

Description

technical field [0001] The invention relates to a method for realizing an agile satellite on-orbit mobile imaging task, and belongs to the technical field of agile satellite mobile imaging. Background technique [0002] The current model of satellites does not have any maneuvering actions when performing imaging tasks. The ground users turn on, take pictures, and shut down the camera subsystem on the satellite, and then download the data to the ground receiving station through the digital transmission subsystem. The program-controlled instructions executed in chronological order are coded and formatted according to the satellite-to-earth communication format, and are uploaded to the satellite when the satellite is in transit. After receiving it, the on-board computer sends instructions to the sub-systems on the star in order to complete imaging tasks. [0003] The high agility and high precision characteristics of agile satellites require the coordination of multiple subsys...

AI Technical Summary

Problems solved by technology

Clearly, the command-level method of operation of previous models cannot achieve this

In addition, the previous models cannot save the instructions that have been registered on the ground after the on-board computer is reset or switched off, and must rely on the ground to re-register. At this time, reliable and continuous operation of satellite imaging tasks cannot be achieved.

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