Bandwidth
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Bandwidth
1. In an antenna, the
range of frequencies
within which its performance, in respect to some characteristic, conforms to a
specified standard.
2. In a wave, the least
frequency interval outside of which the power
spectrum of a time-varying quantity is everywhere less than some specified
fraction of its value at a reference frequency.
3. The number of cycles per second between the limits of a frequency
band.
Sense 2 permits the spectrum to be less than the specified fraction
within the interval. Unless otherwise stated, the reference frequency is that
at which the spectrum has its maximum value.
4. In information theory, the information-carrying capacity of a
communications channel.
[edit] References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
