Aircraft Acoustic Signal Modeled as Oscillatory Almost-Cyclostationary Process

Type
Conference Paper

Authors
Napolitano, Antonio

KAUST Grant Number
OSR-2019-CRG8-4057

Date
2021-01-24

Abstract
The acoustic almost-cyclostationary signal emitted by a moving aircraft is modeled as an oscillatory almost-cyclostationary process when it is received by a stationary listener. Its autocorrelation function is constituted by the superposition of angle-modulated sinewaves, where the angle modulation is consequence of the time-varying delay due to the relative motion between aircraft and listener. Conditions under which the source almost-cyclostationary signal can be recovered by the received signal by time de-warping are established. Thus, cyclic features of the source signal carrying information on aircraft parameters are estimated by classical cyclic spectral analysis.

Citation
Napolitano, A. (2021). Aircraft Acoustic Signal Modeled as Oscillatory Almost-Cyclostationary Process. 2020 28th European Signal Processing Conference (EUSIPCO). doi:10.23919/eusipco47968.2020.9287381

Acknowledgements
This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. OSR-2019-CRG8-4057

Publisher
Institute of Electrical and Electronics Engineers (IEEE)

Conference/Event Name
28th European Signal Processing Conference, EUSIPCO 2020

DOI
10.23919/eusipco47968.2020.9287381

Additional Links
https://ieeexplore.ieee.org/document/9287381/

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