Research of generalized cross correlation to time delay estimation based on wavelet analysis[C]. First International Conference on Instrumentation, Measurement, Computer, Communication and Control, 2011:74-77.WANG HONGKAI, FANG LIQING XIONG CHAO. Research of generalized cross correlation to time delay ...
This technique avoids ambiguities in the cross correlation, and it is shown that the best sampling rate is double the Nyquist rate, for which the Cramer-Rao lower bound (CRLB) is met in practice.关键词: Theoretical or Mathematical/ array signal processing correlation theory delays time-domain ...
LTE DOWNLINK CHANNEL ESTIMATION WITH FREQUENCY-DOMAIN LMMSE INTERPOLATION BASED ON POWER-DELAY PROFILE APPROXIMATION An approximate channel correlation function can then be obtained from the approximate PDP and used in frequency-domain channel estimation. In the time ... YDW Lin - 《International Journal...
Time delay estimation methods (TDE) are well-known techniques to investigate poloidal flows in hot magnetized plasmas through the propagation properties of turbulent structures in the medium. One of these methods is based on the estimation of the time lag at which the cross-correlation function (...
The problem of estimating time delay by cross correlation methods is reexamined for the whole class of stationary signals. Expressions are derived for the estimation mean square error (MSE) by the cross correlation method, and are shown to be identical to previously published results for Gaussian ...
To better view the decrease in correlation at small shifts, plot only shifts between ± 1 sec. Solution: Load the EEG signal and apply axcor with the EEG signal as the only input argument. Plot the result using the lags output scaled by the sampling frequency to provide the delay (i.e...
Generalized cross correlation often used in time -delay estimation is studied in detail and simulated with different weight functions, and the results are compared. Then the spectral subtraction method used in speech enhancement is introduced to be pretreatment, and the generalized cross correlation is...
Time delay is found to affect the multifractal characterization, where a larger time delay causes a weaker multifractality. We also propose an alternative modification on MF-DXA to make the process more robust. The logarithmic return and volatility of Chinese stock indices show cross-correlation ...
a selection method based on Pearson correlation coefficient is designed.A cross-correlation delay estimation method based on EMD decomposition and reconstruction algorithm is put forward by selecting IMF components for reconstructing and denoising,and combining with the cross-correlation time delay estimation...
El-Bakry, H.M., "New Fast Time Delay Neural Networks Using Cross Correlation Performed in the Frequency Domain," Neurocomputing Journal, vol. 69, 2006, pp. 2360-2363.Hazem M. El-Bakry, "New Fast Time Delay Neural Networks Using Cross Correlation Performed in the Frequency Domain," ...