FIR DIGITAL-FILTERS WITH LEAST-SQUARES STOPBANDS SUBJECT TO PEAK-GAIN CONSTRAINTS

被引:71
作者
ADAMS, JW
机构
[1] CALIF STATE UNIV NORTHRIDGE,DEPT ELECT ENGN,NORTHRIDGE,CA 91330
[2] HUGHES AIRCRAFT CO,DIV RECONNAISSANCE SYST,LOS ANGELES,CA 90009
来源
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS | 1991年 / 38卷 / 04期
关键词
D O I
10.1109/31.75395
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
This paper was motivated by the numerous applications requiring FIR digital filters with least-squares stopbands subject to maximum-gain constraints. The digital filters presented here can efficiently meet simultaneous specifications on the peak stopband gain and the total stopband energy. The trade-off between these filter performance measures is explored. It is shown that the trade-off is extremely unfavorable for minimax filters designed by the Parks-McClellan computer program [1]. In particular, the stopband energy corresponding to a Parks-McClellan filter can be significantly reduced at the expense of a very small increase in the peak stopband gain. Examples are included.
引用
收藏
页码:376 / 388
页数:13
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