NDLI: A high-resolution wideband digital channelizer for software radio systems using high-order perfect reconstruction filterbanks

Content Provider	IEEE Xplore Digital Library
Author	Bo Li Jian Yan Xiang Chen Shunliang Mei
Copyright Year	2013
Description	Author affiliation: Aerospace Center, Tsinghua University, Beijing, China (Jian Yan; Xiang Chen) \|\| Department of Electronic Engineering, Tsinghua University, Beijing, China (Bo Li; Shunliang Mei)
Abstract	High-resolution wideband digital channelizer is the key component for extraction and reconstruction of multichannel signals in software radio systems. It has been proved that complex-exponential modulated (CEM) perfect reconstruction (PR) filter-bank is an efficient structure for the wideband channelizer, in which the Parks-McClellan (PM) algorithm based design method for the PR prototype filter and PR filterbank is effective when the number of sub-channels is less than 1024. However, due to the limitation of the PM algorithm for the filters with extremely high-order or narrow transition band, it doesn't work well when the number of sub-channels increases further. In this paper, we propose an efficient design method for such high-order PR filterbanks, which is based on the classical Frequency Sampling (FS) method and the criterion of least mean square error (LMSE). By this proposal, the designs for any high-order PR filters and related high-resolution wideband channelizers can be guaranteed with excellent reconstruction performance. Some numerical simulations are provided to verify the effectiveness of the proposed method, even when the number of sub-channels reaches to 8192.
Starting Page	2908
Ending Page	2913
File Size	1060785
Page Count	6
File Format	PDF
ISBN	9781467359382
ISSN	15253511
e-ISBN	9781467359399
e-ISBN	9781467359375
DOI	10.1109/WCNC.2013.6555023
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-04-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	least mean square error wideband digital channelizer perfect reconstruction frequency sampling two-channel lossless lattice
Content Type	Text
Resource Type	Article

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