Signal Concentration on Unit Sphere: An Azimuthally Moment Weighting Approach
Wei, Liying; Kennedy, Rodney; Lamahewa, Tharaka
Signals defined on the unit sphere cannot be simultaneously concentrated in a spatial region and in the spherical harmonic spectrum. In this paper we develop a unique spatial concentration measure, a kth moment azimuthal measure, for real-valued spectral-limited signals defined on the unit sphere. The optimal functions with the 2nd and 4th minimum azimuthally moment weighting are obtained and simulation results show: 1) the waveforms tend to be even as k increases, 2) have good energy...[Show more]
|Collections||ANU Research Publications|
|Source:||Proceedings of ICASSP 2010|
|01_Wei_Signal_Concentration_on_Unit_2010.pdf||299.22 kB||Adobe PDF||Request a copy|
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