Measurement time requirement for generalized cross-correlation based time-delay estimation

被引：0

作者：

Zou, QY ^{[1
]}

Lin, ZP ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Ctr Signal Proc, Singapore 639798, Singapore

来源：

2002 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL III, PROCEEDINGS | 2002年

关键词：

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A time-varying environment may not allow performing a long-time time-delay measurement between sensors when localizing a signal source. Finite measurement time causes the estimate of the Generalized Cross Correlation (GCC) not only biased but also incurred a high estimation variance, which intends to increase the estimation anomalies. This paper analyses the performance of the GCC based time-delay estimators with finite measurement time. Also, a simple method based on detection theory is proposed to determine the minimal measurement time requirement using the Gaussian model.

引用

页码：492 / 495

页数：4

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