Equivalent Gains of Non-linear Devices to an Amplitude Modulated Signal in the Presence of Random Noise

Abstract

The purpose of this paper is to determine the equivalent gains of non-linear devices to an amplitude modulated signal in the presence of random noise, and to evaluate how these equivalent gains depend on such important variables as ; (a) the amplitude of signal, (b) various non-linearities, and (c) variance of random noise. The investigation of these problems is of considerable interest in the study of non-linear control system. From an analytical point of view, the problem lies in an evaluation of the correlation function of the output of a non-linear device to the input. Then we develop an equivalent linearization technique, using these results.