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.
|Title of host publication
|2020 28th European Signal Processing Conference (EUSIPCO)
|Number of pages
|Published - Jan 24 2021
Bibliographical noteKAUST Repository Item: Exported on 2021-02-23
Acknowledged KAUST grant number(s): OSR-2019-CRG8-4057
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
This publication acknowledges KAUST support, but has no KAUST affiliated authors.