Aircraft Acoustic Signal Modeled as Oscillatory Almost-Cyclostationary Process

Antonio Napolitano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.
Original languageEnglish (US)
Title of host publication2020 28th European Signal Processing Conference (EUSIPCO)
PublisherIEEE
Pages2368-2372
Number of pages5
ISBN (Print)9789082797053
DOIs
StatePublished - Jan 24 2021
Externally publishedYes

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