Estimation of dead time using correlation analysis in the time-frequency domain

被引：0

作者：

Hiraide, Y ^{[1
]}

Kazato, H ^{[1
]}

机构：

[1] Yamatake Honeywell Co Ltd, Ctr Adv Technol, Hodogaya Ku, Yokohama, Kanagawa 240, Japan

来源：

(SYSID'97): SYSTEM IDENTIFICATION, VOLS 1-3 | 1998年

关键词：

dead time; wavelet transform; time-frequency analysis; cross-correlation function; signal-noise ratio;

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：

We propose a new method to estimate dead time. In this method, the time-frequency information which is obtained through wavelet transform is analyzed using cross-correlation function. It is possible to detect the frequency band which is not influenced by noise on the basis of the analysis. This method enables accurate estimation of dead time. Simulations and tests on an air conditioning system show that the method is robust against noise.

引用

页码：47 / 52

页数：6