Fading

  • frequency-selective time-varying fading causes a cloudy pattern to appear on a spectrogram. time is shown on the horizontal axis, frequency on the vertical axis and signal strength as grey-scale intensity.

    in wireless communications, fading is variation of the attenuation of a signal with various variables. these variables include time, geographical position, and radio frequency. fading is often modeled as a random process. a fading channel is a communication channel that experiences fading. in wireless systems, fading may either be due to multipath propagation, referred to as multipath-induced fading, weather (particularly rain), or shadowing from obstacles affecting the wave propagation, sometimes referred to as shadow fading.

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Frequency-selective time-varying fading causes a cloudy pattern to appear on a spectrogram. Time is shown on the horizontal axis, frequency on the vertical axis and signal strength as grey-scale intensity.

In wireless communications, fading is variation of the attenuation of a signal with various variables. These variables include time, geographical position, and radio frequency. Fading is often modeled as a random process. A fading channel is a communication channel that experiences fading. In wireless systems, fading may either be due to multipath propagation, referred to as multipath-induced fading, weather (particularly rain), or shadowing from obstacles affecting the wave propagation, sometimes referred to as shadow fading.