A Relay Satellite Single-site Antenna Scheduling Method Suitable for Broken-point Resume Transmission

Abstract

The invention discloses a relay satellite single-site antenna scheduling method suitable for breakpoint resume transmission, which includes obtaining a task set to be allocated; establishing a planning model for antenna scheduling, and clarifying objective functions and constraints; Allocation; the two-stage scheduling algorithm includes a complete task allocation phase and a resumable task allocation phase, and the algorithm includes task resource matching, generation of task available resource sets, calculation of available period conflicts, task interpolation, and task available resource sets Update operators. The present invention aims at the problems of low task completion rate and low resource utilization rate caused by the difference in task requirements in the relay business process, and at the same time takes into account the actual situation of the relay business and user needs, and improves the traditional relay satellite application model. The algorithm A high-quality scheduling solution can be obtained in a short period of time, and it is suitable for relay satellite scheduling scenarios with high requirements on scheduling time, and has gains in task completion rate and resource utilization.

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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