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Ofdm Modulation. Dvb-t Transmitter System In The Fpga Implementation

Posted on:2005-01-12Degree:MasterType:Thesis
Country:ChinaCandidate:E S DongFull Text:PDF
GTID:2208360125964283Subject:Signal and Information Processing
Abstract/Summary:PDF Full Text Request
In the project of the DVB-T transmitter, I am in charge of the OFDM modulation software design and verification. DVB-T was brought forward by ESTI, and now it has great influence in the field of digital video. The whole system of DVB-T is composed of RS-coding, inner interweaver, constellation mapping and IFFT transform. The task of the project is the building of the hardware flat form based on the EP1S25 and the FPGA realization of coding and modulation. I complete the software design of IFFT transform in 2k mode. In the paper, the principle of OFDM and DVB-T is introduced firstly, then some different algorithms and architecture of FFT are compared, at last, I decided a Radix2+CORDIC pipeline architecture and complete IFFT transform of 2048 complex points with verilog HDL language. What I have done in the project are list below:Read papers associated with my project and get familiar with basic principle of systemMade clear the frame of the system with teammates and make the interface criterionCompare the FFT algorithms and architectures widely and make a lots of simulationPick out an optimal scheme and complete the design and verification, After simulation and debug, the design meets with system requirement very well...
Keywords/Search Tags:DVB-T, OFDM, FFT, CORDIC
PDF Full Text Request
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