Accession Number : ADA262298


Title :   Comment on Time Domain Doppler Estimators of the Amplitude of Vibrating Targets.


Descriptive Note : Final rept.


Corporate Author : NAVAL RESEARCH LAB ORLANDO FL UNDERWATER SOUND REFERENCE DETACHMENT


Personal Author(s) : Piquette, Jean C ; van Buren, A L


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a262298.pdf


Report Date : Jan 1993


Pagination or Media Count : 3


Abstract : We have previously pointed out that using linear Doppler effect analysis to evaluate scattering by a vibrating surface produces inaccurate results in acoustics, except under highly specialized conditions. Our objections are based on the fact that medium nonlinearities, and nonlinearities in the fundamental acoustical equations, produce much stronger effects than those predicted on the basis of linear acoustical theory. In the subject paper, it is suggested that our objections do not apply to the case.


Descriptors :   *ACOUSTIC SCATTERING , REPRINTS , SCATTERING , VIBRATION , FREQUENCY MODULATION , AMPLITUDE , DOPPLER EFFECT , TIME DOMAIN , ACOUSTIC DETECTION , TARGETS , SURFACES , TARGET DETECTION


Subject Categories : Acoustic Detection and Detectors


Distribution Statement : APPROVED FOR PUBLIC RELEASE