The generalized cross-correlation Method for time delay estimation of infrasound signal

被引：16
|
作者：
Meng Liang [1 ]
Li Xi-Hai [1 ]
Zhang Wan-Gang [1 ]
Liu Dai-Zhi [1 ]
机构：
[1] Xian Res Inst High Technol, Xian 710025, Peoples R China
来源：
2015 FIFTH INTERNATIONAL CONFERENCE ON INSTRUMENTATION AND MEASUREMENT, COMPUTER, COMMUNICATION AND CONTROL (IMCCC) | 2015年
关键词：
infrasound; the generalized cross-correlation method; time delay; window function;
D O I：
10.1109/IMCCC.2015.283
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The work described herein discusses the application of generalized cross-correlation method to time delay estimation of infrasound signal. At present, the basic cross-correlation technique is mainly used to the time delay estimation of infrasound signal. However, the estimation accuracy based on this method is not high. In order to improve the accuracy, the generalized cross-correlation method is applied in this paper. The generalized cross-correlation method can be viewed as applying a weighting or a window function to the cross-power spectrum. An improved window function is given and compared with several other proposed processors of similar form. The result shows that the estimation accuracy by the improved window function is high and the performance is stable under different signal-to-noise ratio.
引用
收藏
页码：1320 / 1323
页数：4
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