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

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Chapter Ten. Sample Rate Conversion

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The useful, and fascinating, process of sample rate conversion is a scheme for changing the effective sampling rate of a discrete time-domain signal sequence. We’ll fully explain that puzzling notion in a moment. But first, know that sample rate conversion has many applications; it’s primarily used to minimize computations by reducing signal data rates when a signal of interest’s bandwidth has been narrowed by 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 ...

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