A new digital control method for a time varying sampled data system called a variable period deadbeat control is proposed to control high order nonholonomic chained systems with drift terms. This control law has a potential to avoid an excessive overshoot to prevent the trajectories close to the singular manifold of the transformation needed to obtain the chained forms. The control will be appl...

Cheating on standardized tests has been a major concern as it potentially minimizes measurement precision. One major way to reduce cheating by collusion is to administer multiple forms of a test. Even with this approach, potential collusion is still quite large. A Latin-square treatment structure for distributing multiple forms is proposed to further reduce the colluding potential. An index to ...

This paper considers the problem of sampleddata control for continuous linear parameter varying (LPV) systems. It is assumed that the sampling periods are arbitrarily varying but bounded. Based on a time-varying delay system transformed from the sampled-data control system, some less conservative results are obtained compared with the existing results. The proposed method for the designed gain ...

Based on the synchronous language elements introduced in Modelica 3.3, a library is described to utilize the new features in a convenient way for graphical model definition of sampled data systems. The library has elements to define periodic clocks and event clocks that trigger elements to sample, subsample or super-sample partitions synchronously. Optionally, quantization effects, computationa...

In this paper we investigate the closed-loop performance of a sampled-data control system by utilizing exact discretization techniques. In particular, for an H2 performance measure we give exact expressions for the closed-loop cost for a given sample interval h. After applying discrete-time LQG synthesis to the sampled-data system, the achievable performance is evaluated for fast sampling near ...

For a sampled-data control system, we propose to choose the time between samples to be shorter than the computational delay involved in computing the control signal, an approach we call intradelay sampling. It is shown that, utilising a parallel computing architecture, this is indeed feasible and that intra-delay sampling schemes yield better performance than their slower sampling counterparts.

This paper presents the stability analysis and control synthesis for a sampled-data control system which consists of a nonlinear plant and an output-feedback sampled-data polynomial controller connected in a closed loop. The output-feedback sampled-data polynomial controller, which can be implemented by a microcontroller or a digital computer, is proposed to stabilize the nonlinear plant. Based...