The paper presents new notions of Wigner distributions and corresponding ambiguity functions defined by quaternionic Fourier transforms of correlation products of recently defined quaternionic and monogenic two-dimensional (2-D) signals. The properties of new defined Wigner distributions are compared with Wigner distributions of 2-D analytic signals with single-quadrant spectra. It is well known that Wigner distributions of complex signals are real functions. Differently, the Wigner distributions of quaternionic and monogenic signals may be quaternionic-valued functions. However, it may happen that some 2-D slices of 4-D Wigner distributions are real functions.
%0 Journal Article
%1 hahn05
%A Hahn, S. L.
%A Snopek, K. M.
%D 2005
%J Signal Processing, IEEE Transactions on
%K fourier quaternion
%N 8
%P 3111--3128
%R 10.1109/TSP.2005.851134
%T Wigner distributions and ambiguity functions of 2-D quaternionic and Monogenic Signals
%V 53
%X The paper presents new notions of Wigner distributions and corresponding ambiguity functions defined by quaternionic Fourier transforms of correlation products of recently defined quaternionic and monogenic two-dimensional (2-D) signals. The properties of new defined Wigner distributions are compared with Wigner distributions of 2-D analytic signals with single-quadrant spectra. It is well known that Wigner distributions of complex signals are real functions. Differently, the Wigner distributions of quaternionic and monogenic signals may be quaternionic-valued functions. However, it may happen that some 2-D slices of 4-D Wigner distributions are real functions.
@article{hahn05,
abstract = {The paper presents new notions of Wigner distributions and corresponding ambiguity functions defined by quaternionic Fourier transforms of correlation products of recently defined quaternionic and monogenic two-dimensional (2-D) signals. The properties of new defined Wigner distributions are compared with Wigner distributions of 2-D analytic signals with single-quadrant spectra. It is well known that Wigner distributions of complex signals are real functions. Differently, the Wigner distributions of quaternionic and monogenic signals may be quaternionic-valued functions. However, it may happen that some 2-D slices of 4-D Wigner distributions are real functions.},
added-at = {2015-09-12T12:02:11.000+0200},
author = {Hahn, S. L. and Snopek, K. M.},
biburl = {https://www.bibsonomy.org/bibtex/20574c05a607b4ed398169b7898d944a3/ytyoun},
doi = {10.1109/TSP.2005.851134},
interhash = {6b01d30e14fa175a254fdc520d4c12a3},
intrahash = {0574c05a607b4ed398169b7898d944a3},
issn = {1053-587X},
journal = {Signal Processing, IEEE Transactions on},
keywords = {fourier quaternion},
month = aug,
number = 8,
pages = {3111--3128},
timestamp = {2015-09-13T15:23:45.000+0200},
title = {Wigner distributions and ambiguity functions of 2-D quaternionic and Monogenic Signals},
volume = 53,
year = 2005
}