Multi-satellite multi-station data downloading scheduling method and system

A scheduling method and data technology, applied in the field of satellite scheduling, can solve the problem of high ground station load, achieve low sensitivity, improve solution efficiency and effect
CN112737660AActive Publication Date: 2021-04-30HEFEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
HEFEI UNIV OF TECH
Publication Date
2021-04-30

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Abstract

The invention provides a multi-satellite multi-station data downloading scheduling method and system, and relates to the technical field of satellite scheduling. According to the imaging request deadline requirement required by a user, the latest task downloading end time is calculated, the task imaging weight is defined, clustering is carried out according to a satellite downloading time window, and an available ground station is selected for data downloading. Different from data downloading scheduling based on greedy rules and the like in previous research, a downloading scheduling strategy based on task deadline is provided, so that the downloading time sensitivity of a currently planned task is relatively low, and the solving efficiency and effect are improved.
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Description

technical field

[0001] The invention relates to the technical field of satellite scheduling, in particular to a multi-satellite and multi-station data downlink scheduling method and system. Background technique

[0002] Multi-satellite multi-station integrated scheduling involves multiple satellites, multiple observation tasks, and multiple ground stations. It refers to allocating resources to The imaging tasks and data downloading tasks corresponding to multiple competing requirements, and determine the start and end time of each task, so as to meet the needs of users to the greatest extent.

[0003] The main difference between multi-satellite and multi-station integrated scheduling and single-satellite scheduling is that there may be multiple satellites with imaging capabilities for the same observation task, so there are more choices for the arrangement of observation tasks. Compared with the limitation that non-agile satellites can only image when they fly over the targ...

Claims

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