Communication resource allocation method for online relay satellite system for mixed tasks

Abstract

The invention discloses an online satellite system communication resource allocation method oriented to a hybrid task. The method mainly solves the problem that the relay satellite system communication resource cannot be dynamically distributed in the prior art. The realization process is as follows: a relay satellite system real-time acquires a task request, and independently allocates the dynamic updating of a planning period realization resource for each antenna through a multi-antenna asynchronous scheduling mechanism, thereby capturing the burstiness of the task; in each planning period,a communication resource conflict graph is constructed to describe the communication resource conflict of the relay satellite system, and a communication resource allocation scheme is generated by solving the maximum independent set of the communication resource conflict graph, and the communication resource of the relay satellite system is allocated according to this scheme. The composing efficiency on the hybrid task is improved through the multi-antenna synchronous scheduling mechanism, the conflict between the communication resources is represented by using the communication resource conflict graph, the complexity of the communication resource allocation is reduced, and the utilization efficiency of the communication resource is improved.

Description

technical field [0001] The invention belongs to the technical field of space information, and mainly relates to a space network collaborative distribution management method, which can be used for task planning and scheduling of a relay satellite system. Background technique [0002] The relay satellite system is an important infrastructure in my country. It is an important space-based platform that supports data relay between medium- and low-orbit spacecraft, and between spacecraft and ground stations, and continuous tracking and measurement and control. However, due to the high cost of relay satellites, long launch period, and limited orbital and frequency resources, my country's relay satellite resources are extremely scarce, and relay services have long been in short supply. With the rapid development of my country's aerospace industry, space missions have shown explosive growth. In particular, the complex space environment where relay satellites live leads to dynamic ch...

AI Technical Summary

Problems solved by technology

However, this type of method ignores the suddenness of tasks and the dynamics of resources, and cannot solve the problem of time-varying resource conflicts, thus affecting the efficient use of relay satellite resources

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