Inter-sensor propagation delay estimation using sources of opportunity

Abstract : Propagation delays are intensively used for Structural Health Monitoring or Sensor Network Localization. In this paper, we study the performances of acoustic propagation delay estimation between two sensors, using sources of opportunity only. Such sources are defined as being uncontrolled by the user (activation time, location, spectral content in time and space), thus preventing the direct estimation with classical active approaches, such as TDOA, RSSI and AOA. Observation models are extended from the literature to account for the spectral characteristics of the sources in this passive context and we show how time-filtered sources of opportunity impact the retrieval of the propagation delay between two sensors. A geometrical analogy is then proposed that leads to a lower bound on the variance of the propagation delay estimation that accounts for both the temporal and the spatial properties of the sources field.
Document type :
Journal articles
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-01203413
Contributor : Olivier Michel <>
Submitted on : Wednesday, September 23, 2015 - 9:03:16 AM
Last modification on : Monday, February 25, 2019 - 4:34:21 PM

Links full text

Identifiers

Citation

Remy Vincent, Mikael Carmona, Olivier Michel, Jean-Louis Lacoume. Inter-sensor propagation delay estimation using sources of opportunity. Signal Processing, Elsevier, 2016, 118 (January), pp.248-258. ⟨10.1016/j.sigpro.2015.07.006⟩. ⟨hal-01203413⟩

Share

Metrics

Record views

340