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DSP Software Development Techniques for Embedded and Real-Time Systems by Robert Oshana

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Introduction to Digital Signal Processing

What is Digital Signal Processing

Digital signal processing (DSP) is a method of processing signals and data in order to enhance or modify those signals, or to analyze those signals to determine specific information content. It involves the processing of real-world signals that are converted into and represented by sequences of numbers. These signals are then processed using mathematical techniques in order to extract certain information from the signal or to transform the signal in some (preferably beneficial) way.

The “digital” term in DSP requires processing using discrete signals to represent the data in the form of numbers that can be easily manipulated. In other words, the signal is represented ...

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