Title :
Time delay estimation of Gaussian signal in non-Gaussian spatially correlated noise
Author :
Guanghua, Tang ; Qi, Chen ; Guosui, Liu
Author_Institution :
Dept. of Electron. Eng., Nanjing Univ. of Sci. & Technol., China
Abstract :
In this paper a new hybrid approach for solving the time delay estimation of Gaussian signal in the presence of unknown non-Gaussian spatially correlated noise has been proposed. First, the fourth-order statistics of the measurements, thus those of the non-Gaussian noise are estimated; then the second-order statistics of the noise are computed by statistics projection. Finally, cross-correlation based approaches are used to estimate time delay parameter .The results of the simulation example show that this paper´s method has superiority.
Keywords :
Gaussian processes; correlation methods; delay estimation; higher order statistics; signal processing; Gaussian signal; fourth-order statistics; nonGaussian spatially correlated noise; time delay estimation; Correlation; Delay effects; Delay estimation; Gaussian noise; Noise measurement; Programmable logic arrays; Random processes; Signal processing; Statistics; Time invariant systems;
Conference_Titel :
Neural Networks and Signal Processing, 2003. Proceedings of the 2003 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
0-7803-7702-8
DOI :
10.1109/ICNNSP.2003.1279356
