Euler-Bessel and Euler-Fourier Transforms

Details Euler-Bessel and Euler-Fourier Transforms Euler-Bessel and Euler-Fourier Transforms

2010-11-19

arxiv.org/abs/1011.4494v1

Mathematics

Algebraic Topology

Scientific paper

We consider a topological integral transform of Bessel (concentric isospectral sets) type and Fourier (hyperplane isospectral sets) type, using the Euler characteristic as a measure. These transforms convert constructible $\zed$-valued functions to continuous $\real$-valued functions over a vector space. Core contributions include: the definition of the topological Bessel transform; a relationship in terms of the logarithmic blowup of the topological Fourier transform; and a novel Morse index formula for the transforms. We then apply the theory to problems of target reconstruction from enumerative sensor data, including localization and shape discrimination. This last application utilizes an extension of spatially variant apodization (SVA) to mitigate sidelobe phenomena.

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