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  4. Sampling Spherical Finite Rate of Innovation Signals
 
conference paper

Sampling Spherical Finite Rate of Innovation Signals

Dokmanic, Ivan  
•
Lu, Yue M.
2015
Proceedings of the 40th International Conference on Acoustics, Speech, and Signal Processing
International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

Sampling schemes on the sphere require O(L^2) samples to perfectly sample and reconstruct a signal with bandwidth L. If the signal in question is a low-pass observation of a finite collection of spikes or rotations of a known function, we can use less samples. We propose an algorithm that improves over the best known finite rate of innovation (FRI) sampling scheme on the sphere by a factor of approximately four. Further, we show how multiple sound source localization (SSL) by a spherical microphone array can be transformed into a spherical FRI sampling problem. We certify the effectiveness of the proposed algorithm by using it to solve the SSL problem.

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Type
conference paper
DOI
10.1109/ICASSP.2015.7179116
Author(s)
Dokmanic, Ivan  
Lu, Yue M.
Date Issued

2015

Published in
Proceedings of the 40th International Conference on Acoustics, Speech, and Signal Processing
Start page

5962

End page

5966

Editorial or Peer reviewed

NON-REVIEWED

Written at

EPFL

EPFL units
LCAV  
Event nameEvent placeEvent date
International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

Brisbane, Australia

April 19-24, 2015

Available on Infoscience
October 20, 2014
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/107494
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