Relay satellite single-address antenna scheduling method suitable for breakpoint resumption

Abstract

The invention discloses a relay satellite single-address antenna scheduling method suitable for breakpoint resumption. The method comprises the steps of obtaining a to-be-distributed task set; establishing a planning model of antenna scheduling, and defining an objective function and constraint conditions; allocating the tasks by adopting a two-stage scheduling algorithm, wherein the two-stage scheduling algorithm comprises a complete task distribution stage and a breakpoint resume task distribution stage, and the algorithm comprises the task resource matching, task available resource set generation, available time period conflict degree calculation, task insertion and operator updating by a task available resource set. The method of the invention aims to solve the problems of low task completion rate and low resource utilization rate caused by the difference of task requirements during the relay service process, considers the actual situation and the user requirements of the relay service at the same time and improves a traditional relay satellite application model, the algorithm can obtain a high-quality scheduling scheme within the shorter time, and is suitable for a relay satellite scheduling scene with higher requirements for scheduling time and has gains at the aspects of task completion rate, resource utilization rate and the like.

Description

technical field [0001] The invention belongs to the field of satellite scheduling, and in particular relates to a single-site antenna scheduling method for relay satellites suitable for resuming transmission from broken points. Background technique [0002] Tracking and data relay satellite (TDRS), referred to as relay satellite, mainly provides data relay, continuous tracking and orbit measurement and control services for medium and low orbit spacecraft. As the number of satellites launched for space missions increases, large amounts of data need to be downloaded from orbit to the ground. The relay satellite has the characteristics of high orbit and large coverage area, which can expand the visible time window between the medium and low orbit satellite and the ground station. As a space-based transmission platform in geostationary geostationary orbit, the relay satellite system not only needs to perform scheduled tasks, but also serves global emergency missions, which puts...

AI Technical Summary

Problems solved by technology

The application mode of the user application method mainly has the following two problems: first, the user's task requirements are complex and diverse, and the feasible time window tightness and task service duration of different task applications are different. It is difficult for these flexible and complex requirements to be determined by a single The description of the feasible time window makes the description of the actual user task requirements in the task application information not accurate and sufficient

Second, since each task is only allowed to apply for one time window, and the task is not allowed to continue uploading from breakpoints, if the time window cannot be satisfied during the scheduling process, the task will not be successfully scheduled, and it is difficult to achieve different tasks through reasonable scheduling. The resolution of conflicts between tasks is not conducive to improving the flexibility of scheduling work and the quality of scheduling solutions

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