About: Coherence bandwidth

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Coherence bandwidth is a statistical measurement of the range of frequencies over which the channel can be considered "flat", or in other words the approximate maximum bandwidth or frequency interval over which two frequencies of a signal are likely to experience comparable or correlated amplitude fading. If the multipath time delay spread equals D seconds, then the coherence bandwidth in rad/s is given approximately by the equation: Also coherence bandwidth in Hz is given approximately by the equation:

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  • Coherence bandwidth is a statistical measurement of the range of frequencies over which the channel can be considered "flat", or in other words the approximate maximum bandwidth or frequency interval over which two frequencies of a signal are likely to experience comparable or correlated amplitude fading. If the multipath time delay spread equals D seconds, then the coherence bandwidth in rad/s is given approximately by the equation: Also coherence bandwidth in Hz is given approximately by the equation: It can be reasonably assumed that the channel is flat if the coherence bandwidth is greater than the data signal bandwidth.The coherence bandwidth varies over cellular or PCS communications paths because the multipath spread D varies from path to path. (en)
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  • Coherence bandwidth is a statistical measurement of the range of frequencies over which the channel can be considered "flat", or in other words the approximate maximum bandwidth or frequency interval over which two frequencies of a signal are likely to experience comparable or correlated amplitude fading. If the multipath time delay spread equals D seconds, then the coherence bandwidth in rad/s is given approximately by the equation: Also coherence bandwidth in Hz is given approximately by the equation: (en)
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  • Coherence bandwidth (en)
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