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Sampling theory for functions with fractal spectrum. (English) Zbl 1014.94006

The authors investigate in greater detail a sampling formula given by the second author [J. Anal. Math. 81, 209-238 (2000; Zbl 0976.42020)] for functions whose spectrum lies in a Cantor set \(K\) of a special type introduced by P. Jorgensen and S. Pedersen [ibid. 75, 185-228 (1998)], where the sampling set is extremely thin and the sampling function is quite different from the usual sinc function. The authors obtain new properties of the sampling function and give approximate descriptions of both local and global behavior of functions with spectrum in \(K\). Some experimental results are described, and more can be found at http://www.mathlab.cornell.edu/\(\sim\)tillman.

MSC:

94C10 Switching theory, application of Boolean algebra; Boolean functions (MSC2010)
28A80 Fractals
42C40 Nontrigonometric harmonic analysis involving wavelets and other special systems

Citations:

Zbl 0976.42020

Software:

MATHLAB
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References:

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