The generalized cross-correlation Method for time delay estimation of infrasound signal
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.
infrasound the generalized cross-correlation method time delay window function
Meng Liang Li Xi-Hai Zhang Wan-Gang Liu Dai-Zhi
Xian Research Institute of High Technology Xian 710025, Peoples Republic of China
国际会议
秦皇岛
英文
1320-1323
2015-09-18（万方平台首次上网日期，不代表论文的发表时间）