CCDF Measurement

The complementary cumulative distribution function (CCDF) is a statistical characterization of the time-domain waveform that completely describes the power characteristics of a signal. A CCDF graph relates average signal power (X axis) to signal power statistics (Y axis) such that each point on the CCDF curve shows how much time a signal spends at or above a given power level. The power level is expressed in dB relative to the average signal power level.