Systems theory applications of personal computers. III

For pt.II see ibid., vol.5, no.5, p.44 et seq (1989). The authors report on their work concerning the development of several second generation programs. These include the following: (1) a program for plotting the response of a linear system to a unit step if either the transform function or a state-state description of the system are given. (2) a program for obtaining different types of frequency response plots from the transfer function of the forward path of a linear feedback system, which would also take into account the presence of transport lag in the system. (3) A program for designing a suitable compensator for a linear feedback system, given the transfer function of the plant and the specifications for the steady-state accuracy and the maximum magnitude of the frequency response of the closed-loop system. The authors have also developed a general purpose graph plotting program in Turbo-Pascal version 5.0. They report on the inclusion of this program with those developed earlier for the three programming objectives described above.<>