An alternative state estimation scheme to extract gaussian message from nongaussian observation was proposed. The filter consists of a modification of Kalman filter to include a prefilter instead Kalman gain scheme. This prefilter is a conection in paralell of three branches: the first one,...

One step integration methods of third and fourth order accuracy that use K function evaluations to solve the system of differential equations dydt= A · y are proposed. These methods are shown to have a hyperbolic stability limit of y (K − 1)2 − 1 which approaches the theoretical maximum...

This paper describes a new approach to the problem of motion prediction. An extension of the “Vector-Network” method to rigid body systems in 3-D is introduced. This procedure, with its computational implementation, is shown to eliminate the work of analytically modelling a dynamic system in...

The method of Lagrange multipliers is applied to find the optimal size distributions of isothermal continuous stirred tank reactors (CSTR) with fixed terminal constraints, to carry out a simple reaction. The control variables minimizing the Lagrangian of the problem can be found by the well...

The aim of the present paper is to generalize the finite element approximation for numerical simulation of special types of problems in the dynamic theory of elasticity, described by the two-dimensional mixed boundary value problems, and to demonstrate the property of their numerical solution....

The paper describes language UMS for manipulation task programming and manipulation systems teaching. Basic features of the language are outlined and the approach to the trajectory synthesis with motion statements is described. The structure of the language is briefly explained as well as the...

La simulation des systémes dynamiques complexes conduit à la résolution d'un grand nombre d'équations différentielles difficiles à maitriser. Dans ce contexte de simulation, le calculateur hybride présente certains avantages. Lorsqu'on dispose de peu de moyens en matériel ou lorsqu'il...

In implementing any optimization method on a computer, several problems arise: •how to break off the iterative process;•how to determine the satisfactory computed solution and be sure the computer cannot provide a better one;•how to tell whether or not computed solution approximates the...

In this paper, a method is presented for the calculation of the coefficients of the series expansion of a function f(t), in the base orthonormal set made up by the eigenfunctions of the self-adjoint operator L: L(x(t)) = (ddt)( p(t)(dx(t)dt))−q(t)x(t). We show that the values of the numbers...

A weak formulation of linear two-point boundary-value problems is introduced. Then the factorization method, which is suitable for hybrid computation, is applied. So we can treat the problems with right-hand side containing Dirac distributions or some more general ones. In the general case, the...