Determination of the Sensitivity of Linear Periodically-Time-Variable Circuits by the Frequency Symbolic Method

摘要

The notion of the sensitivity that is widely used in the multivariate analysis and the optimization of linear circuits with constant parameters is applied to linear circuits, parameters of which change over time. In this case, the sensitivity in the frequency domain is a function of not only a complex variable S, but also of time t. The adequacy of such an application in the frequency domain is shown for the case, when the transfer functions of circuit are formed approximately in the form of Fourier polynomials by the so called frequency symbolic method. Computer experiments on the calculation of the sensitivity of linear periodically-time-variable circles, performed in the system of functions MAOPCs, are presented, which is used when designing amplifiers of special purpose with low noise ratio.