A wide-band square-law computing amplifier

Wide-hand computing amplifiers capable of accurately and continuously yielding output signals with amplitudes proportional to the mathematical square of their input amplitudes have been developed. These computers are designed to be inserted in signal channels in much the same manner as conventional amplifiers, but impart thereto a square-law transfer characteristic. Details are given concerning a model that provides an accuracy of the order of 1 per cent of full scale over an output dynamic range of 40 db when operating on fractional microsecond, pulsed carrier signals.