Title :
Maximum likelihood estimation of time-delay of ultrasonic signals based on Wigner distribution
Author :
Ijima, H. ; Ohsumi, A.
Author_Institution :
Dept. of Mechanical & Syst. Eng., Kyoto Inst. of Technol., Japan
Abstract :
The authors have already proposed a method to estimate parameters of signals corrupted by random noise, using pseudo-Wigner distribution. In this paper efficacy of this method is demonstrated by experiments concerning to an ultrasonic radar system.
Keywords :
Wigner distribution; delays; maximum likelihood estimation; random noise; ultrasonic devices; ultrasonic waves; maximum likelihood estimation; parameter estimation; pseudoWigner distribution; random noise; time delay estimation; time frequency analysis; ultrasonic radar system; ultrasonic signals;
Conference_Titel :
SICE 2003 Annual Conference
Conference_Location :
Fukui, Japan
Print_ISBN :
0-7803-8352-4
