Browsing by Keywords "Signal sampling"
Now showing items 1-5 of 5
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Degrees of freedom of optical systems and signals with applications to sampling and system simulation
(Optical Society of America, 2013)We study the degrees of freedom of optical systems and signals based on space-frequency (phase space) analysis. At the heart of this study is the relationship of the linear canonical transform domains to the space-frequency ... -
Directionally selective fractional wavelet transform using a 2-d non-separable unbalanced lifting structure
(2012)In this paper, we extend the recently introduced concept of fractional wavelet transform to obtain directional subbands of an image. Fractional wavelet decomposition is based on two-channel unbalanced lifting structures ... -
Optimal sampling of multidimensional periodic band-limited signals
(2005)In this paper, we present an algebraic description of the aliasing phenomena evident in the linear sampling process of multidimensional periodic band limited signals. Opposed to the classical Shannon sampling, periodic ... -
Sampling and series expansion theorems for fractional Fourier and other transforms
(Elsevier, 2003)The sampling and series expansion theorems for fractional Fourier transforms were analyzed. In addition to the fractional Fourier transform, the method can also be applied to the Fresnel, Hartley and scale transforms. The ... -
Tracking the best level set in a level-crossing analog-to-digital converter
(Elsevier, 2013)In this paper, we investigate level-crossing (LC) analog-to-digital converters (ADC)s in a competitive algorithm framework. In particular, we study how the level sets of an LC ADC should be selected in order to track the ...
