Title :
Cepstral analysis of systems with dispersion
Author :
Khalili, N. ; Hammond, J.
Author_Institution :
Inst. of Sound & Vibration Res., Southampton Univ., UK
Abstract :
How cepstral methods may be extended to accommodate a system in which the propagating waves are dispersive is described. This is done by incorporating the dispersion law into the procedure. This results in a cepstrum in which the independent variable is space such that at a point determined by the distances between the measurement and reflectors, functions related to the reflection coefficients appear. Theoretical, simulation, and experimental results are presented. The physical applications include both structural and acoustic wave propagation in a slender beam and a duct, respectively
Keywords :
acoustic dispersion; acoustic signal processing; acoustic wave propagation; acoustic wave reflection; dispersion (wave); spectral analysis; acoustic wave propagation; acoustic wave reflection; cepstral analysis; dispersion law; duct; propagating waves; reflection coefficients; signal processing; slender beam; systems with dispersion; Acoustic beams; Acoustic measurements; Acoustic propagation; Acoustic reflection; Acoustic waves; Cepstral analysis; Cepstrum; Dispersion; Extraterrestrial measurements; Optical reflection;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on
Conference_Location :
Albuquerque, NM
DOI :
10.1109/ICASSP.1990.116076
