a non-linear operation performed by a device having a characteristic such that the output signal is approximately proportional to the square of the instantaneous values of the envelope of the input oscillation Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=702-06-72
a non-linear operation performed by a device having a characteristic such that the output signal is approximately proportional to the square of the instantaneous values of the envelope of the input oscillation