Cross-correlation function of a class η1 system
W. L. YUEN · International Journal of Control · 1973
This paper investigates the cross-correlation function of a class η1 system with pseudorandom input signal. It is shown that the input-output cross-correlation function is proportional to the impulse function of the linear filter. The constant of proportionality is dependent upon the non-linearity and the input statistics. Extension to multivariate situation is then briefly discussed.