Input Shaping/Time Delay Prefilter are techniques for robust vibration control of slewing flexible structures. These are open-loop schemes and cannot handle uncertain initial conditions and effects of disturbances. In this paper, we develop a technique for the design of closed loop input shapers and illustrate it on a simple benchmark problem. Range of uncertainties over which the system remain...

A spoken dialog system performs best when users speak within the grammar that the system understands. We conducted a simple study to investigate how easily users can be persuaded to speak to a system using a restricted, less-thannatural-language input style. In a Wizard-of-Oz setting, users of a spoken dialogue system for information access were given brief instructions to “speak simply” to the...

Background: Automatic and accurate control of heart rate (HR) during treadmill exercise is important for prescription and implementation of training protocols. The principal design issue for feedback control of HR is to achieve disturbance rejection of very-low-frequency heart rate variability (VLF-HRV) with a level of control signal activity (treadmill speed) which is sufficiently smooth and a...

Conventional model-based control strategies are very complex and difficult to synthesize due to high complexity of the dynamics of robots manipulator considering joint elasticity. This paper presents investigations into the development of hybrid control schemes for trajectory tracking and vibration control of a flexible joint manipulator. To study the effectiveness of the controllers, initially...

Control over optical spatial coherence is a key requirement in diverse applications including imaging, trapping, and communications. Current approaches to controlling are constrained by speed or limited single pair of fields. Here, we propose method achieve single-shot control the between an arbitrary number Our employs multi-port linear device, which realize shaping wavefront input light field...

Input-shaping is a practical open-loop strategy for the control of transient and residual oscillations on cranes, especially those having predefined payload transfer paths and repeated maneuvers. In this paper double-step input-shaping control approach is developed to include maneuvers that involve large hoisting distances and speeds. The approach is based on using the graphical representation ...

this paper concerns a study on the optimal control for nonlinear systems. an appropriate alternative in order to alleviate the nonlinearity of a system is the exact linearization approach. in this fashion, the nonlinear system has been linearized using input-output feedback linearization (iofl). then, by utilizing the well developed optimal control theory of linear systems, the compensated nonl...

Abstract: H Control designs are quite effective in robust design for systems under unstructured uncertainty, unknown disturbance and measurement noise. Conventional H loop-shaping is a reasonable method for designing the robust controller. H Loop-shaping guarantees closed-loop performance and robustness to generic unstructured dynamic uncertainty, where robustness to uncertainty is incorporated...