Signal Processing
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Derrick, Timothy
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Altmetrics
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Abstract
A signal is a time or space varying quantity that conveys information. It may take the form of a sound wave, a voltage, a current, a light wave, a magnetic field, a displacement, a velocity, an acceleration or a host of other physical quantities. These are examples of continuous signals (the signal is present at all instances of time or space). As a matter of convenience we often convert continuous signals into discrete signals by sampling the phenomena at intervals (Figure 3.1).
Comments
This accepted book chapter is published as Derrick, T.R. (2014). Chapter 12. Signal Processing. In: Research Methods for Biomechanics 2nd Ed, (pp. 279-290), Robertson, D.G.E., Hamill, J. Caldwell, G.E., Kamen, G. (eds). Human Kinetics Publishers, Champaign, Illinois. ISBN: 9780736093408. Posted with permission.