Phase-encoded joint transform correlator by use of logarithmic transformation

被引：0
|
作者：
Zhao Yu [1 ]
Bai Baohua [1 ]
机构：
[1] Jilin Univ, Inst Commun Engn, Changchun 130012, Peoples R China
来源：
ICEMI 2007: PROCEEDINGS OF 2007 8TH INTERNATIONAL CONFERENCE ON ELECTRONIC MEASUREMENT & INSTRUMENTS, VOL I | 2007年
关键词：
pattern recognition; joint transform correlator; phase encoding; logarithmic transform;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A novel joint transform correlator(JTC) is designed. In this technique, phase-encoding method is used to reduce the influence of the extraneous signals such as zero order term, the conjugate cross-correlations between reference and input targets, etc. To sharpen the correlation peaks, a modified logarithmic transform algorithm is proposed, which greatly improve the discrimination ability. Simulation results show the proposed system performs well in both noise-free and noisy environment.
引用
收藏
页码：119 / 124
页数：6
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