State-space synthesis and analysis of log-domain filters

被引:29
作者
Frey, DR [1 ]
机构
[1] Lehigh Univ, Dept Comp Sci & Elect Engn, Bethlehem, PA 18015 USA
来源
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING | 1998年 / 45卷 / 09期
基金
美国国家科学基金会;
关键词
analog filters; log-domain filters; state-space methods;
D O I
10.1109/82.718587
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The general state-space synthesis of linear filters is reviewed including the use of linear transformations. Then the use of time-varying nonlinear mappings on the state variables is shown to produce equations for the synthesis of linear, linear companding, and log-domain filters, Formulas are developed which underlie the realization of log-domain filters, Design issues relating to realizability, noise, and nonideal performance are discussed using the state-space mathematical formulation.
引用
收藏
页码:1205 / 1211
页数:7
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