DocumentCode :
3047959
Title :
Estimation of time difference of arrivals for multiple ARMA sources by a pole decomposition method
Author :
Nehorai, A. ; Morf, M.
Author_Institution :
Stanford University, Stanford, CA
fYear :
1982
fDate :
8-10 Dec. 1982
Firstpage :
1000
Lastpage :
1002
Abstract :
Time difference of arrivals (TDOAs) of emitter wavefronts to spatially distributed array of sensors can be used to determine the source location. In this paper, we suggest a new method of TDOA estimation for multiple unknown sources of ARMA type and additive noise that is correlated between the sensors. We first consider the appropriate model for non-integer delays, and then we derive a theoretical formula that needs only the receiver cross-spectra and the source poles for the TDOA determination. The poles are estimated by a least squares technique, and a sample correlation is applied to evaluate the receiver cross-spectra. Results from simulations illustrate the performance of the algorithm.
Keywords :
Additive noise; Amplitude estimation; Attenuation; Autoregressive processes; Delay effects; Delay estimation; Microphone arrays; Sensor arrays; System identification; Time difference of arrival;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Decision and Control, 1982 21st IEEE Conference on
Conference_Location :
Orlando, FL, USA
Type :
conf
DOI :
10.1109/CDC.1982.268297
Filename :
4047400
Link To Document :
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