Distortion of multilevel msequences by a single-valued nonlinearity

The paper discusses the response of a class of nonlinear elements subjected to multilevel msequences. For a single-valued nonlinearity, the technique evaluates the crosscorrelation function between input and output and the autocorrelation function of the output. As one example of the use of the method, it is proved that, for any symmetrical single-valued nonlinearity subjected to any 5-level msequence, the autocorrelation function of the output is proportional to that of the input signal.