TIME-DOMAIN ANALYSIS OF CROSS-CORRELATION FOR TIME-DELAY ESTIMATION WITH AN AUTOCORRELATED SIGNAL

被引：19
|
作者：
KUMAR, A
BARSHALOM, Y
机构：
[1] University of Connecticut, Storrs
来源：
IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1993年 / 41卷 / 04期
关键词：
D O I：
10.1109/78.212738
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：
This correspondence analyzes the estimation accuracy of the time difference of arrival (TDOA) of an exponentially autocorrelated signal at two sensors in white noise. The estimate is obtained by cross correlating samples taken as short-term integrals of the noisy signals from the two sensors. This technique avoids ambiguities in the cross correlation, and it is shown that the best sampling rate is double that of the Nyquist rate, for which the Cramer-Rao lower bound (CRLB) is practically met.
引用
收藏
页码：1664 / 1668
页数：5
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