Signals through nonlinearities and the suppression of undesired intermodulation terms (Corresp.)

The analysis of an arbitrary number of signals plus noise passed through a nonlinearity is extended to the general class of
\nu
th-law devices. Closed-form approximations to a number of special cases of interest are obtained from the general result. Using the approximations a method for suppressing undesired intermodulation terms is suggested; it is confirmed by laboratory measurements.