TY - CPAPER
AB - 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.
T1 - Sampling Spherical Finite Rate of Innovation Signals
DA - 2015
AU - Dokmanic, Ivan
AU - Lu, Yue M.
JF - Proceedings of the 40th International Conference on Acoustics, Speech, and Signal Processing
SP - 5962-5966
EP - 5962-5966
ID - 202164
UR - http://infoscience.epfl.ch/record/202164/files/DokmanicL14.pdf
ER -