Title :
Performance of Doppler estimation for acoustic sources with atmospheric scattering
Author :
Kozick, Richard J. ; Sadler, Brian M.
Author_Institution :
Dept. of Electr. Eng., Bucknell Univ., Lewisburg, PA, USA
Abstract :
A statistical analysis of differential Doppler estimation is presented for acoustic sources with a harmonic spectrum. Our model for the sensor measurements includes a physics-based statistical model for the scattering of the wavefronts by the atmosphere. We derive the Cramer-Rao bound (CRB) on differential Doppler estimation as a function of the atmospheric conditions, the frequency of the source, and the range of the source. We apply the CRB result for several cases of interest with simulated and measured data.
Keywords :
Doppler effect; acoustic signal processing; acoustic wave propagation; acoustic wave scattering; atmospheric acoustics; frequency estimation; statistical analysis; Cramer-Rao bound; acoustic sources; atmospheric scattering; differential Doppler estimation; frequency estimation; harmonic spectrum; physics-based statistical model; scattering; statistical analysis; Acoustic measurements; Acoustic noise; Acoustic scattering; Acoustic sensors; Additive noise; Atmospheric measurements; Atmospheric modeling; Frequency estimation; Internal combustion engines; Land vehicles;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
Print_ISBN :
0-7803-8484-9
DOI :
10.1109/ICASSP.2004.1326274
