1/f Noise - the Flickering Candle

Here is a good short tutorial on 1/f noise from the EDN website. Says TI's Bruce Trump, in part, "It's also called flicker noise, like a flickering candle. Seen on an oscilloscope with a slow sweep it has a wandering baseline (figure 1) because the high frequency noise rides on larger low frequency content. Pink noise, another metaphoric name, also suggests the stronger low frequency component. Flicker noise seems ever present in physical systems and life science. Weather/climate patterns, for example, have a 1/f component..."

Posted March 2013

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