Definition:Filtering Function/Warning
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Filtering Function Also known as
The filtering function is also known as the interpolating function.
The filtering function $\map {\operatorname {sinc} } x$ is not the same as the real function $f$ defined as $\forall x \in \R: \map f x = \dfrac {\sin x} x$, which is depicted below:
Sources
- 1978: Ronald N. Bracewell: The Fourier Transform and its Applications (2nd ed.) ... (previous) ... (next): Preface to the Second Edition