Autonomous operation method of agile satellite data transmission subsystem

Abstract

The invention discloses an autonomous operation method of an agile satellite data transmission subsystem, and belongs to the technical field of agile satellites. The method comprises the following steps of: firstly, determining five meta-task modes according to the working mode of the data transmission subsystem, and proposing meta-task data block content requirements and sending time requirements; then, providing a meta-task autonomous operation method based on instruction pool traversal execution, reading meta-task data blocks from a storage area and analyzing the meta-task data blocks, judging instructions meeting sending conditions in an instruction pool in a traversal mode, generating an instruction sequence, sending and executing the instruction sequence one by one at the designatedtime on the basis of an appropriate instruction interval; and repeating the above steps until executing all meta-tasks at this time. The method is low in implementation complexity, improves the instruction execution efficiency, execution timeliness and use flexibility, and is suitable for agile satellites with a large number of monorail tasks, high requirements for task response timeliness and high requirements for action execution accuracy.

Description

technical field [0001] The invention relates to an autonomous operation method of an agile satellite data transmission subsystem, belonging to the technical field of agile satellite autonomous operation. Background technique [0002] The mission of optical remote sensing satellites is to obtain images of ground areas according to user requirements. Traditional optical remote sensing satellites usually can only achieve single-degree-of-freedom passive push-broom imaging. With the continuous development of aerospace technology and the expansion of user needs, countries have successively carried out the development of agile satellites. Agile satellites have more than one degree of freedom in one direction, and their viewing angles can usually change around the three axes of roll, pitch, and yaw, and the viewing angle change can be paralleled with the imaging process, so that it is possible for the satellite to move along any direction within the range allowed by its capabilitie...

AI Technical Summary

Problems solved by technology

In the traditional mode, there are only 1 to 2 imaging tasks per track for satellites, but the number of tasks per track for agile satellites such as Pleiades in France is increased to 20, requiring the number of tasks injected into satellites per day to increase from 20 to 30 to about 100 to 120. The traditional operation and control system based on "ground mission planning + on-board command template execution" can no longer meet the needs of agile satellite single-track multi-mode and multi-task use

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