Dynamic Channelization Based on Nonuniform Filterbanks

Li Bing; Zheng Jin; Ge Lin-dong

doi:10.3724/SP.J.1146.2006.00455

Volume 29 Issue 10

Jan. 2011

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Article Navigation > Journal of Electronics & Information Technology > 2007 > 29(10): 2396-2400

Li Bing, Zheng Jin, Ge Lin-dong . Dynamic Channelization Based on Nonuniform Filterbanks[J]. Journal of Electronics & Information Technology, 2007, 29(10): 2396-2400. doi: 10.3724/SP.J.1146.2006.00455

Citation:

Li Bing, Zheng Jin, Ge Lin-dong . Dynamic Channelization Based on Nonuniform Filterbanks[J]. Journal of Electronics & Information Technology, 2007, 29(10): 2396-2400. doi: 10.3724/SP.J.1146.2006.00455

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Dynamic Channelization Based on Nonuniform Filterbanks

doi: 10.3724/SP.J.1146.2006.00455

Received Date: 2006-04-10
Rev Recd Date: 2006-11-23
Publish Date: 2007-10-19

Abstract

Abstract

Based on the fact that there exist several subband signals in the received bandwidth, whose number, band location and bandwidth are time-variant, this paper presents an efficient method of dynamic channelization based on nonuniform filterbanks. The number of subchannels of the uniform filterbank is firstly determined by the given minimal guard bandwidth, and then a corresponding cosine-based filterbank is designed. A nonuniform matrix is derived in terms of band location of every subband signal, and then a nonuniform filterbank can be constructed through directly merging the adjacent subchannels of the uniform filterbank according to the nonuniform matrix. When subband signals dynamically change, channelization can be implemented as long as updating the nonuniform matrix in terms of band location of new subband signal. The computational complexity of implementation architecture can be reduced by the use of relationships between decimation factors of different subband signals. Computer simulations illustrate new method validity.

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References(1)

References

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