Dennis S. Bernstein

TL;DR: In this paper, the authors proposed a nonlinear controller that guarantees stability and bounded disturbance rejection for Hammerstein systems with quadratic input nonlinearity, and used this controller to achieve tracking for a single-sided electromagnetic oscillator.

TL;DR: In this article, the triaxial attitude control testbed has been developed as part of a research program on spacecraft multibody rotational dynamics and control, and equations of motion are derived and presented in various forms.

TL;DR: In this paper, the problem of determining a feedback controller or estimator that optimizes an H 2 performance criterion involving a collection of plant models is considered, and the question of maximal controller order is also investigated.

TL;DR: In this paper, a general theory of optimal constrained-structure dynamic output feedback compensation is developed, which is applied in an iterative fashion, where the indicated iteration occurs over the choice of the compensator dynamic structure.

TL;DR: In this paper, the optimal projection equations derived previously for reduced-order, continuous-time modelling, estimation and control are developed for the discrete-time case, and the design equations are presented in a concise and unified manner to facilitate their accessibility for the development of numerical algorithms for practical applications.