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12: Convolution Algorithms

Last updated

Mar 22, 2021
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- 11.3: Special Algorithms for input Data that is mostly Zero
- 12.1: Introduction

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Topic hierarchy

12.1: Introduction
12.2: Fast Convolution by Overlap-Add and Overlap-Save
12.3: Block Processing - a Generalization of Overlap Methods
Convolution is intimately related to the DFT. It was shown in The DFT as Convolution or Filtering that a prime length DFT could be converted to cyclic convolution. It has been long known that convolution can be calculated by multiplying the DFTs of signals.
12.4: Direct Fast Convolution and Rectangular Transforms
12.5: Number Theoretic Transforms for Convolution

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