Digital Penalized LMS method for filter synthesis with arbitrary constraints and noise

被引:35
作者
Gatti, E [1 ]
Geraci, A [1 ]
Riboldi, S [1 ]
Ripamonti, G [1 ]
机构
[1] Politecn Milan, Dipartimento Elettronica & Informaz, I-20133 Milan, Italy
关键词
digital filter; DSP; optimum filter synthesis; digital spectroscopy;
D O I
10.1016/j.nima.2003.12.032
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A new method to calculate optimum digital filters for applicative fields requiring high resolution measurements, such as nuclear spectroscopy, is presented. This method easily works in experimental measurement setups, as optimum filter is synthesized with regard to the assigned time and frequency domain constraints (e.g. finite duration, flat top, peaking time, zero area. etc.) and by taking into account the real environmental noise or disturbance present in the system and identified from data sets of straightforward signal acquisitions. The method is fully developed and compared with other state of the art techniques for synthesis of optimized numerical filters. It can be easily implemented into DSP based processors and can be used as a tool to optimize the digital filter section of reconfigurable processing setups. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:167 / 185
页数:19
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