The Peak-to-average power ratio (PAPR) of a signal is the peak power divided by the average power.
$PAPR=\frac{{x}_{peak}^{2}}{{S}_{x}}=\frac{{\hat{x}}^{2}}{{x}_{eff}^{2}}$
Crest factor
$C=\sqrt{PAPR}$
Waveform | $PAPR$ | $PAPR{|}_{dB}$ |
---|---|---|
DC | 1 | 0 dB |
Square | 1 | 0 dB |
Sine | 2 | 3,01 dB |
Cosine | 2 | 3,01 dB |
Triangle | 3 | 4,77 dB |
Sawtooth | 3 | 4,77 dB |
Audio signal | 80 | 19 dB |
Each wave form has its particular PAPR value. Measure for different wave forms the peak amplitude and the time-averaged power. Determine the PAPR of this wave form.