Current topics
- Spatial source covariance matrix estimation (collaboration with Gilles Chardon)
- estimation of the correlation between two points of the space (and not only imaging the power for each point of the space)
- useful to identify a set of correlated sources (e.g. one source and its images source due to reflections, or for spatially distributed sources)
- Acoustic imaging for large scale problem (collaboration with Gilles Chardon)
- high number of sensors
- imaging a large region of interest with fine discretization
- Localization of spatially distributed sources
- localization of non-point sources
- estimation of the spatial spread of the sources
- EEG
Spectrum analysis (line spectra) & vibration analysis
- Spectrum estimation for modal analysis with Tip-Timing signals
- tip-timing signals are sub-sampled and non-uniformly sampled
- sparse spectrum (modal analysis) is estimated with greedy approach: Orthogonal Matching Pursuit (OMP)
- collaboration with SAFRAN SHE
- Spectrogram analysis for fault detection
- collaboration with SAFRAN SAE
Phone as a key for automotive application
(In collaboration with VALEO and Gilles Chardon)
The Valeo project is to replace the car key by a smartphone app, one of the security challenge is to accurately localize the smartphone owner.
- Design of a low-cost antenna array switching receiver with only one CAN.
- Theoretical performance analysis
- Choice of switching sequences
High-resolution methods (previous works)
- High resolution methods for non-standard hypothesis (non-uniform geometry, near field, wideband, distributed sources, polarization…)
- Joint estimation of physical parameters (angle, delay, polarization, wave velocity…)
- Theoretical performance analysis
Main keywords
- Array processing, source localization, acoustic imaging
- Spectrum analysis (line spectra), vibration analysis
- High-resolution methods (ESPRIT, MUSIC)
- Sparse constraints for inverse problems
