A reconfigurable wideband digital channelized switching method and system

A digital channelization and broadband technology, applied in the field of satellite communication, can solve the problems of low flexibility, large amount of calculation and storage, etc.
CN103391183BInactive Publication Date: 2016-08-17NO 63 RES INST HEADQUARTERS OF THE GENERAL STAFF PLA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NO 63 RES INST HEADQUARTERS OF THE GENERAL STAFF PLA
Publication Date
2016-08-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a reconfigurable broadband digital channelized exchange method and system and relates to the communication field. The reconfigurable broadband digital channelized exchange method includes that a finite impulse response (FIR) equiripple low-pass filter group with the bandwidth to be the preset times of the bandwidth of a basic sub channel is designed; the frequency domain parameter of each low-pass filter in the low-pass filter group is extracted and trimmed; base band frequency domain data of each business sub signal are separated from a broadband uplink channel according to the frequency domain parameters; the base band frequency domain data of the business sub signals obtained through separation are subjected to exchange processing to obtain base band frequency domain data of each business signal in a broadband downlink channel; the base band frequency domain data of the business signals in the broadband downlink channel are comprehensively processed to obtain time domain complex base band data of the broadband downlink channel. The reconfigurable broadband digital channelized exchange method and system remarkably improve flexibility of a digital channelized device.
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Description

technical field

[0001] The invention relates to the technical field of satellite communication, in particular to a reconfigurable broadband digital channelized switching method and system. Background technique

[0002] The satellite communication application environment is becoming more and more complex, and related technologies and communication requirements are developing rapidly. The high cost of geostationary satellites and the much higher difficulty of on-orbit technology update than ground systems require on-orbit geosynchronous satellites to have extensive adaptability and flexibility. Specifically, the requirements are: the on-board payload is not sensitive to the specific frame structure, channel codec method, and signal modulation method used in the transmission service, and has wide adaptability; the on-board payload has the on-board switching function. Digital channelization technology is just in line with this development situation.

[0003] Digital channelizat...

Claims

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