In this article the method of Kalman and Bucy filter is used for the estimation of the speech message from the corrupted signal with noise. In this case we must know the statistic properties of the speech message and the statistic properties of the noise. The statistic properties of the speech...

The author examines the different methods thanks to which the simulation of a transfer function can be achieved, in analogue computation, on a differentiel analyser. Seven methods are analysed successively and the pros and cons of each of them are examined and discussed.

The authors introduce a new method for simulating phase-controlled induction motors. This method consists of utilizing the general model of the motor, referred to the equivalent two-phase machine, and of applying suitable input signals when the current is switched-off in one or more windings.

This paper presents a hybrid method of simulating a class of non-linear distributed parameter systems. The implicit method based on an integral representation of the dynamic boundary value problem. This integral equation is formulated using Green's function, defined by the linear spatial...

Dans cet article, les auteurs présentent un calculateur hybide spécialement conçu pour résoudre de manière automatique un système d'équations algébriques linéaires homogènes, les coefficients de la matrice du système dépendant d'un paramètre. Le principe de la méthode repose sur...

This paper introduces a new method of detecting and handling discontinuities in arbitrary functions which form part of an ordinary differential equation set. The method has been implemented in conjunction with the Gear[6] integration algorithm for stiff equation sets, published by Hindmarsh[9],...

An attempt was made to solve the partial differential equations representing the kinetic behaviour of a counterflow heat exchanger on a hybrid computer. The partial differential equation in one space variable and time are replaced by differential-difference equations as an approximation, the...