Maximum Amplitude Method for Estimating Compact Fractional Fourier Domain

被引：30

作者：

Zheng, Liying ^{[1
]}

Shi, Daming ^{[2
]}

机构：

[1] Harbin Engn Univ, Sch Comp Sci & Technol, Harbin 150001, Peoples R China

[2] Kyungpook Natl Univ, Sch Elect Engn & Comp Sci, Taegu, South Korea

来源：

IEEE SIGNAL PROCESSING LETTERS | 2010年 / 17卷 / 03期

关键词：

Coarse-to-fine strategy; compact domain; fractional Fourier transform; maximum amplitude; TRANSFORM;

D O I：

10.1109/LSP.2009.2038511

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：

A maximum-amplitude-based coarse-to-fine algorithm is proposed with two novel ideas highlighted: adopting the maximum value of the fractional Fourier amplitude spectrum to measure the compactness of a signal, and using a coarse-to-fine strategy to speed up the searching process. The simulation results on synthetic and real signals show the validity of the proposed method.

引用

页码：293 / 296

页数：4

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