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This paper deals with the design of robust digital controllers for gun-turret systems which exhibit large parameter and high frequency unmodeled uncertainties. A method based on quadratic stability criteria is developed to search control laws which achieve possible maximum tolerance for system uncertainties while remaining high degree of tracking and reulating precision. Simulated results are shown...
This paper summarizes the design objectives and approaches of the weapon control design presented in the Invited Session WA12 on Advanced Weapon Control Technology. To design a high-precision, high-bandwidth, and reliable weapon control system, several design approaches and their integration are investigated. This includes robust control design to account for unmodeled dynamics inherent in the gun-turrent...
This paper introduces a new control system design methodology that allows the use of linearly controlled manipulators in fast, more complex maneuvers. This is made possible by guaranteeing a prescribed degree of relative stability while constraining the system state variables and inputs. The closed-loop linear system is also assigned desirable eigenvectors. The robustness of the system is evaluated...
Model reference variable structure controllers are applied to switched-mode circuits, and their performance robustness is investigated. A generalized formulation together with its solution is presented for a class of problems, in variable structure control, involving state-space analysis of inherently time-varying regulators. The effects of the design averaging model and its description on tracking...
Recently, many attractive optimal control schemes have been developed for real-time robotic applications. Due to the inherent complex physical structures, robotic control systems embody a number of hard features, such as multi-input and multi-output characteristics, nonlinearity, time-varying parameters, and highly coupled system dynamics. Furthermore, they require consideration of such issues as...
The design and implementation of microprocessor-based optimal controllers for the XM-97 helicopter turret control system is considered. Nonfiring and firing test results are presented. Significant performance improvement of the optimal turret over the original turret has been obtained in terms of percent overshoots, settling times, and shot pattern dispersions. The system investigated in this paper...
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