27 citations · 60 across the 15 of their papers we have counts for
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cs.IT2020★ 6 cited
Convolution Idempotents with a given Zero-set
Aditya Siripuram, Brad Osgood
We investigate the structure of N-length discrete signals h satisfying h*h=h that vanish on a given set of indices. We motivate this problem from examples in sampling, Fuglede's co…
cs.IT2014
Discrete Sampling: A graph theoretic approach to Orthogonal Interpolation
Aditya Siripuram, William Wu, Brad Osgood
We study the problem of finding unitary submatrices of the discrete Fourier transform matrix, in the context of interpolating a discrete bandlimited signal using an or…
cs.IT2012★ 13 cited
Discrete Sampling and Interpolation: Universal Sampling Sets for Discrete Bandlimited Spaces
Brad Osgood, Aditya Siripuram, William Wu
We study the problem of interpolating all values of a discrete signal f of length N when d<N values are known, especially in the case when the Fourier transform of the signal is ze…