Time-Delay Estimation Based on Multilayer Correlation

被引：0
作者：
Yan, Hua [1 ]
Zhang, Yang [1 ]
Chen, GuanNan [1 ]
机构：
[1] Shenyang Univ Technol, Sch Informat Sci & Engn, Shenyang 110870, Peoples R China
来源：
ADVANCES IN COMPUTER SCIENCE, ENVIRONMENT, ECOINFORMATICS, AND EDUCATION, PT I | 2011年 / 214卷
关键词：
time-delay estimation; multilayer cross-correlation; multilayer auto-correlation; low SNR;
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：
Time-delay estimation technique is a key to acoustic temperature field measurement. In order to acquire a stable acoustic time-of-flight in low SNR, a time-delay estimation method combined multilayer cross-correlation and multilayer auto-correlation (MC method for short) is proposed. Cross-correlation method and second correlation method are described briefly for comparison. Theory analysis and simulation research in MATLAB prove that MC method can obtain highest estimation precision among these three methods when the signal to noise ratio is low.
引用
收藏
页码：562 / 567
页数：6
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