- Guard band
Guard band has several meanings. __NOTOC__
Radio and electronic signalling
In radio, a guard band is an unused part of the
radio spectrumbetween radio bands, for the purpose of preventing interference.
It is a narrow
frequency rangeused to separate two wider frequency ranges to ensure that both can transmit simultaneously without interfering each other. It is used in TDM/ Time division multiple access/ FDM/ Frequency division multiple access. It may be used in both wired or wirelesscommunications, so that adjacent frequency bands on the same media can avoid interference.
In sound, video, or data recording, it refers to the unrecorded space between tracks on
magnetic tapeor other magnetic mediawhich prevents the signals on adjacent tracks from interfering with each other.
In the realm of product
quality control, it is the amount that minimum product specifications are increased to ensure that even with measurement uncertainty the product meets the minimum specifications with a specified level of confidence.
computer graphics, the guard band is a virtual area of the screen bordering the real screen to which any rendering is ignored, used to simplify clipping. This technique is called guard band clipping.
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Look at other dictionaries:
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