Determination of current-voltage characteristic nonlinearity of an surveyed object by a nonlinear radar

Abstract

The imitation mathematical model of formation, detection and estimation of reception levels of combinatorial constituents the probing amplitude-modulated signal is presented. The levels of the higher combinational components from the side frequency of the probing signal are determined. They were obtained after reflection from a nonlinear current-voltage characteristic and have a higher level of amplitudes in comparison with the traditional harmonic probing signal. Theoretical substantiation of the nonlinearities types recognizing method of radioelectronic devices is given. Calculation results of the second and third order degree coefficients of polynomial approximating the current-voltage characteristic of a radio electronic means are presented.