This paper presents a study of the Fourier transform method for parameter identification of a linear dynamic system in the frequency domain using fractional differential equations. Fundamental definitions of fractional differential equations are briefly outlined. The Fourier transform method of identification and their algorithms are generalized so that they include fractional derivatives and integrals.
The author presents a new simple method of shaping the transfer function of a voltage-to-frequency converter. This method is based on changing the time interval in which the reference voltage is connected to the integrator.
The author presents an analogue-to-digital converter with nonlinear programmable characteristic for correction of nonlinear static characteristics of transducers. This A/D converter characteristic is obtained by using a variable reference signal.
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