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Disambiguation of Source and Trajectory Non-Stationarities of a Moving Acoustic Source

Pelluri, Sai Gunaranjan and Sreenivas, TV (2018) Disambiguation of Source and Trajectory Non-Stationarities of a Moving Acoustic Source. In: 2018 Twenty Fourth National Conference on Communications (NCC), FEB 25-28, 2018, Hyderabad, INDIA.

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It is well known that when there is a relative motion between the transmitter (source) and receiver, a Doppler shift is observed in the spectral content of the received signal. In this paper, we investigate a scenario where the source signal itself has an innate spectral non-stationarity in addition to the non-stationarity introduced by the source motion relative to the receiver. Using only a single microphone recording, we show that these two kinds of non-stationarities are distinguishable and propose a method of separating them. Towards this, we propose a novel scheme of simulating the signal from a source traversing an arbitrary trajectory. The proposed simulation mechanism employs band-limited interpolation and non-uniform sampling to incorporate an acoustic source generating an arbitrary band-limited signal and moving along an arbitrary trajectory.

Item Type: Conference Proceedings
Series.: National Conference on Communications NCC
Publisher: IEEE
Additional Information: 24th National Conference on Communications (NCC), Hyderabad, INDIA, FEB 25-28, 2018
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 19 Mar 2019 11:35
Last Modified: 19 Mar 2019 11:35
URI: http://eprints.iisc.ac.in/id/eprint/61972

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