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symmetrical ice-ray

an excellent work of scholarship in its own right

and the Smithsonian's National Air and Space Museum

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Digital Filters symmetrical ice-rayDigital signals occur in an increasing number of applications: in telephone communications; in radio, television, and stereo sound systems; and in spacecraft transmissions, to name just a few. This introductory text examines digital filtering, the processes of smoothing, predicting, differentiating, integrating, and separating signals, as well as the removal of noise from a signal. The processes bear particular relevance to computer applications, one

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