pseudo random noise (PRN)

Pseudo-random noise, Pseudo Random Noise(PRN) or Pseudo Noise( PN), is a digital signal that appears to be statistically distributed noise, but is actually non-random because it is derived from a Linear Feedback ShiftRegister( LFSR).

The point of such pseudo-random signals is to create a noise sequence whose sequence repeats only after a long period of time. The longer, the better.

Pseudo-noise is used in the generation of spreading code in the spreading band technology ofWLANs, for handover in mobile networks and in scramblers for scrambling signals.