comnum.papr_db

comnum.papr_db(x)

The PAPR of a block of samples, max |x|² / mean |x|².

Parameters:

x (array_like) – the samples.

Returns:

the PAPR (dB).

Return type:

float

Raises:

ValueError – for an input that is not an array of numbers of the expected shape.

Examples

>>> import comnum
>>> round(comnum.papr_db([1, 1, 1, 3]), 4)
4.7712