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Spherical harmonic transform for minimum dimensionality regular grid sampling on the sphere

Khalid, Zubair; Kennedy, Rodney


We develop a method to compute spherical harmonic transform (SHT) of a band-limited signal on the sphere discretized over a minimum dimensionality regular sampling grid on the sphere. For the computation of SHT of a signal band-limited at L, the proposed method requires L2 number of samples on a regular grid composed of L iso-latitude rings of samples with only L samples in each ring along longitude. Since a signal band-limited at L is represented by L2 degrees of freedom in the spectral...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Conference paper
Source: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
DOI: 10.1109/ICASSP.2015.7178653
Access Rights: Open Access


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