Title :
Multipath time-delay estimation
Author :
Fuchs, Jean-Jacques
Author_Institution :
IRISA, Rennes, France
Abstract :
A transmitted and known signal is observed at the receiver through more than one path in additive noise. The problem is to estimate the number of paths and for each of them the associated attenuation and delay. It is a frequent problem in sonar, radar and geophysics. We propose an algorithm that is easy to implement, that has a reasonable computational load and seems to be able to solve the problem under more severe conditions (lower SNR) than previous methods
Keywords :
delays; geophysical signal processing; interpolation; maximum likelihood estimation; multipath channels; noise; radar detection; signal sampling; sonar signal processing; additive noise; attenuation; computational load; geophysics; interpolation; low SNR; maximum likelihood method; multipath time delay estimation; oversampling; radar; receiver; signal detection; sonar; transmitted signal; Additive noise; Attenuation; Delay effects; Delay estimation; Geophysics computing; Matched filters; Maximum likelihood detection; Maximum likelihood estimation; Radar; Sonar;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.599691
