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Understanding Digital Signal Processing, Second Edition by Richard G. Lyons

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Chapter Ten. Sample Rate Conversion

Sample Rate Conversion

The useful, and fascinating, process of sample rate conversion is a scheme for changing the effective sampling rate of a discrete signal after the signal has been digitized. As such, sample rate conversion has many applications; it's used to minimize computations by reducing data rates when signal bandwidths are narrowed through lowpass filtering. Sample rate conversion is mandatory in real-time processing when two separate hardware processors operating at two different sample rates must exchange digital signal data. In satellite and medical image processing, sample rate conversion is necessary for image enhancement, ...

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