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
收藏
页码：492 / 495
页数：4
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