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Ambiguity Function and Wigner Distribution on the Sphere

Khalid, Zubair; Sadeghi, Parastoo; Kennedy, Rodney; Durrani, Salman


The ambiguity function and the Wigner distribution are fundamental tools in the time-frequency analysis. In this paper, we present an analog of the ambiguity function and the Wigner distribution for signals on the sphere. First, we formulate the ambiguity function for signals on the sphere which represents the signals in joint spatio-spectral domain and derive an inversion operation to obtain the signal from its ambiguity function. Next, we formulate the Wigner distribution for azimuthally...[Show more]

CollectionsANU Research Publications
Type: Conference paper
Book Title: IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2012)
DOI: 10.1109/ICASSP.2012.6288647


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