Genetic algorithm-based method for synthesis of low peak amplitude signals

被引：29
|
作者：
Horner, A
Beauchamp, J
机构：
[1] UNIV ILLINOIS,SCH MUS,URBANA,IL 61820
[2] UNIV ILLINOIS,DEPT ELECT & COMP ENGN,URBANA,IL 61820
来源：
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 1996年 / 99卷 / 01期
关键词：
D O I：
10.1121/1.414555
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The maximum amplitude of a waveform corresponding to a particular harmonic spectrum depends on the phases of its harmonic components. A waveform with a low peak-to-rms ratio is desirable in situations requiring a maximum signal-to-noise ratio. This paper introduces a genetic algorithm-based method for selecting the phases that produces better results than previously described methods. Results for four different amplitude spectra are given. For the case of a flat spectrum with up to 40 harmonics, the genetic algorithm finds peak factors (peak/root 2rms) ranging from 0.98 to 1.24. (C) 1996 Acoustical Society of America.
引用
收藏
页码：433 / 443
页数：11
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