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一种基于峭度的一单元ICA-R固定点算法

张守成 刘永凯

计算机工程与应用2012,Vol.48Issue(2):130-132,172,4.
计算机工程与应用2012,Vol.48Issue(2):130-132,172,4.DOI:10.3778/j.issn.1002-8331.2012.02.037

一种基于峭度的一单元ICA-R固定点算法

Fixed-point algorithm based on kurtosis for one-unit ICA-R

张守成 1刘永凯1

作者信息

  • 1. 华北科技学院,河北廊坊065201
  • 折叠

摘要

Abstract

One-unit ICA-R is an efficient method utilizing prior information to extract an expected source signal. A fixed-point algo-rithm for one-unit ICA-R is proposed when absolute value of kurtosis is considered as contrast function in this paper. The algorithm avoids the second derivative of contrast function and simpilifies operation accordingly. The fixed-point algorithm can converge faster than Newton fast algorithm based on kurtosis. At last, computer simulations verify the validity of the proposed algorithm.

关键词

峭度/固定点算法/参考独立成分分析

Key words

kurtosis/ fixed-point algorithm/ component analysis with reference

分类

信息技术与安全科学

引用本文复制引用

张守成,刘永凯..一种基于峭度的一单元ICA-R固定点算法[J].计算机工程与应用,2012,48(2):130-132,172,4.

基金项目

国家自然科学基金(No.60672049). (No.60672049)

计算机工程与应用

OACSCDCSTPCD

1002-8331

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