Dynamic carrier configuration method and on-board processing system for spray wave beam satellite communication

A technology for processing system and carrier configuration, applied in the field of satellite communication, to achieve the effect of simple implementation process, improved flexibility and reduced complexity
CN107872273AActive Publication Date: 2018-04-03XIAN INSTITUE OF SPACE RADIO TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
XIAN INSTITUE OF SPACE RADIO TECH
Publication Date
2018-04-03

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Abstract

The invention discloses a dynamic carrier configuration method and an on-board processing system for spray wave beam satellite communication. Firstly, based on an MF-TDMA (multiple frequency time division multiple access) system, the number of carriers and carrier rate are dynamically changed according to user requirements, and time and frequency resources are more flexibly distributed. A transmission frame format suitable for spray wave beam access is given according to communication characteristics of spray wave beams, different carrier configuration modes are adopted at different time slots, and the comprehensive efficiency of spray wave beam service access is improved. Secondly, a dynamic shunt circuit suitable for on-board implementation is given according to the dynamic carrier configuration modes of the spray wave beams and a transmission frame structure, and the system particularly comprises a multilevel shunt processing basic unit, a multi-channel selection and data formattingmodule and a multi-channel digital frequency conversion filtering module. The shunt method can effectively adapt to change of the carrier configuration modes at different time slots, implementation processes are simple, fewer resources are consumed, and the method is applicable to space-borne application.
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Description

technical field

[0001] The invention provides a dynamic carrier configuration method and an on-board processing system for beam-hopping satellite communication, which are used for high-efficiency service access in a beam-hopping environment and belong to the technical field of satellite communication. Background technique

[0002] With the development of satellite communication technology, foreign countries have successively launched large-capacity, high-speed communication satellites to meet the growing demand for satellite broadband communication and broadcasting services. The large-capacity broadband communication satellite system is characterized by wide coverage and large capacity. It adopts technologies such as multi-spot beam and frequency multiplexing, and has high system capacity and spectrum utilization. The current multi-spot beam satellite communication system has various The frequency reuse and radio frequency power of beams are all allocated in a fixed way. Ho...

Claims

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