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.
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页码：293 / 296
页数：4
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