An Estimation Method of Parameters for Closed-box Loudspeaker System

被引：13

作者：

Nakao, Rika ^{[1
]}

Kajikawa, Yoshinobu ^{[1
]}

Nomura, Yasuo ^{[1
]}

机构：

[1] Kansai Univ, Fac Engn Sci, Suita, Osaka 5640073, Japan

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2008年 / E91A卷 / 10期

关键词：

Mirror filter; nonlinear distortion; simulated annealing; compensating pensating distortion;

D O I：

10.1093/ietfec/e91-a.10.3006

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we propose a method that Uses Simulated Annealing (SA) to estimate the linear and nonlinear parameters of a closed-box loudspeaker system for implementing effective Mirror filters. The nonlinear parameters determined by W. Klippel's method are sometimes inaccurate and imaginary. In contrast, the proposed method can estimate the parameters with satisfactory accuracy due to its use of SA: the resulting impedance and displacement characteristics match those of an actual equivalent loudspeaker. A Mirror filter designed around these parameters can well compensate the nonlinear distortions of the loudspeaker system. Experiments demonstrate that the method can reduce the levels of nonlinear distortion by 5 dB to 20 dB compared to the before compensation condition.

引用

页码：3006 / 3013

页数：8