Title
Optimization Of Synthesis Filters For Hybrid Filter Bank Dacs
Abstract
Hybrid filter bank (HFB) is a promising technology that both improve the resolution and speed of digital-to-analog conversion. In this letter, we present a wideband waveform generation method using HFB architecture. Mixers are adopted to break through the limitation caused by zero-order-hold (ZOH) of DACs. However, the imperfect match of analysis filters and synthesis filters significantly degrade the system performance. To solve this problem, we analyze the influence of filter mismatch. An analysis filter design based on weighted least squares (WLS) and an optimization design for synthesis filter is presented. The optimization method invokes the WLS method at each iteration. Performance evaluation shows that these two methods work together and perform a better reconstruction system than the WLS method which just focus on analysis filter bank.
Year
DOI
Venue
2019
10.1587/elex.16.20190053
IEICE ELECTRONICS EXPRESS
Keywords
Field
DocType
hybrid filter bank, digital-to-analog converter, analysis filter, synthesis filter, optimization design, perfect reconstruction
Computer science,Electronic engineering,Digital-to-analog converter,Hybrid filter
Journal
Volume
Issue
ISSN
16
6
1349-2543
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Linglong Yin100.34
Shulin Tian213214.65
Ke Liu32016.97
Guangkun Guo401.01
Yindong Xiao503.04