Discrete Sampling and Interpolation: Orthogonal Interpolation for Discrete Bandlimited Signals
نویسندگان
چکیده
We study the problem of finding unitary submatrices of the discrete Fourier transform matrix. This problem is related to a diverse set of questions on idempotents on ZN , tiling ZN , difference graphs and maximal cliques. Each of these is related to the problem of interpolating a discrete bandlimited signal using an orthogonal basis.
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ورودعنوان ژورنال:
- CoRR
دوره abs/1411.7086 شماره
صفحات -
تاریخ انتشار 2014