Paper Info
Title
DSP based OFDM demodulator and equalizer for professional DVB-T receivers
Abstract
This work treats the design of base-band processing subsystems for professional DVB-T receivers using 1600 MIPS, fixed point DSPs. We show the results about the implementation of OFDM demodulation, channel estimation and equalization functional blocks, for the 2k/8k modes. The adoption of general purpose DSPs provides a great flexibility in the development of different configurations of the receiver. Furthermore it enables the feasibility of adaptive equalization schemes, where the quality of the channel estimation varies according to both channel characteristics and speed of the channel variations. The 16/32 bit fixed point architecture leads to a very low implementation loss, and a careful optimization of the pipeline architecture of the processor allows the receiver to obtain short processing delays. The flexibility of the software approach along with the obtained performance make the proposed implementation very interesting in professional and high-end receivers for interactive, multimedia applications of DVB-T
Year
DOI
Venue
1999
10.1109/11.796275
Broadcasting, IEEE Transactions
Keywords
DocType
Volume
base-band processing subsystems,demodulation,optimisation,interactive multimedia applications,video signal processing,fixed point DSPs,channel characteristics,adaptive equalization,pipeline architecture,equalization functional blocks,processing delays,parallel architectures,OFDM modulation,professional DVB-T receivers,digital signal processing chips,software approach,OFDM demodulation,optimization,digital video broadcasting,adaptive equalisers,fixed point architecture,low implementation loss,television receivers,channel estimation,pipeline processing
Journal
45
Issue
ISSN
Citations 
3
0018-9316
4
PageRank 
References 
Authors
0.50
2
5
Name
Order
Citations
PageRank
F. Frescura1221.90
S. Pielmeier240.50
G. Reali3395.13
Giuseppe Baruffa412318.06
Saverio Cacopardi521925.73