Durak, L.Özdemir, A. K.Arıkan, OrhanSong, I.2016-02-082016-02-082005-09http://hdl.handle.net/11693/27321Date of Conference: 4-8 Sept. 2005Conference name: 13th European Signal Processing Conference, 2005The 2-D signal representations of variables rather than time and frequency have been proposed based on either Hermitian or unitary operators. As an alternative to the theoretical derivations based on operators, we propose a joint fractional domain signal representation (JFSR) based on an intuitive understanding from a time-frequency distribution constructing a 2-D function which designates the joint time and frequency content of signals. The JFSR of a signal is so designed that its projections on to the defining joint fractional Fourier domains give the modulus square of the fractional Fourier transform of the signal at the corresponding orders. We derive properties of the JFSR including its relations to quadratic time-frequency representations and fractional Fourier transformations. We present a fast algorithm to compute radial slices of the JFSR.English2-D signalsFast algorithmsFractional Fourier domainsFractional Fourier TransformationsFractional Fourier transformsFrequency contentsHermitiansIntuitive understandingQuadratic time-frequencySignal representationsTheoretical derivationsTime-frequency distributionsTime-frequency signal representationUnitary operatorsFourier transformsSignal processingFourier opticsConference Paper