Multi-domain flexible communication flexible forwarding processing system

Abstract

The invention discloses a multi-domain flexible communication flexible forwarding processing system, which is characterized in that an on-satellite time reference generation module autonomously generates time control information required by dynamic exchange and a time reference broadcast signal to the ground according to the exchange relation of the system, and broadcasts a time synchronization signal to the ground in a planned sub-band; secondly, a synchronization dynamic comprehensive switching module realizes dynamic channelized switching under the control of a periodic control signal generated by a time reference generation module, and supports different mapping relationships of sub-bands of each port at different times; and finally, the ground equipment measures a time difference value between two continuous time broadcast signals, compares the time difference value with a value given by an exchange period counter, calculates calibration parameters of frequency and time, and compensates the calibration parameters, so that satellite-ground synchronization is realized. According to the method, dynamic and flexible forwarding combining the time domain and the frequency domain is realized, and the use efficiency of frequency resources and the networking flexibility are further improved.

Description

technical field [0001] The invention relates to a multi-domain flexible communication flexible forwarding processing system for communication loads such as high-throughput satellites. The method is mainly used for flexible processing loads in satellite communication loads and belongs to the technical field of satellite communication. Background technique [0002] Digital Transparent Processor (DTP) is the main load of broadband and high-throughput (HTS, High Throughput Satellite) communication satellites. The core part uses technologies such as digital channelization / channel synthesis and sub-band switching based on approximately perfect filtering. Power estimation, sub-band gain control and other functions have outstanding features such as strong multi-system support capability, flexible and variable link connection, and variable frequency planning on demand. Compared with the traditional bent-pipe transponder, the digital transparent processor has the characteristics of hi...

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Problems solved by technology

Document 2 "Gateway Diversity via Flexible Resource Allocation in a Multibeam SS-TDMASystem" (Argyrios Kyrgiazos, Student Member, IEEE COMMUNICATI ONS LETTERS, 2013) provides a method of applying SS-TDMA technology to the HTS system to realize user beam and signal The usage mode of flexible forwarding between off-stations is used to improve the reliability of the system, but the corresponding on-board flexible load implementation method is not given

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