Distortion

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Distortion

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1. An undesired change in waveform. </dd>
Noise and certain desired changes in waveform, such as those resulting from modulation or detection, are not usually classed as distortion. </dd>
2. In a system used for transmission or reproduction of sound, a failure by the system to transmit or reproduce a received waveform with exactness. </dd>
3. An undesired change in the dimensions or shape of a structure as, distortion of a fuel tank due to abnormal stresses or extreme temperature gradients. [[/a>|/a> ]]

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use