comnum.css_cross_correlation#

comnum.css_cross_correlation(sf, l, m)#

The cross-correlation of two continuous-time LoRa waveforms (Chiani and Elzanaty 2019, eq. (7)).

Parameters:

  • sf (int) – spreading factor.

  • l (int) – first symbol.

  • m (int) – second symbol.

Returns:

C(l, m).

Return type:

complex

Raises:

ValueError – for an invalid parameter (the message names it).