Delay

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Delay

</dt>
The time (or equivalent distance) displacement of some characteristic of a wave relative to the same characteristic of a reference wave; that is, the difference in phase between the two waves. Compare lag. </dd>
In one-way radio propagation, for instance, the phase delay of the reflected wave over the direct wave is a measure of the extra distance traveled by the reflected wave in reaching the same receiver. </dd>

References

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