Results 271 to 280 of about 1,001,289 (316)

Sensitivity reduction in modal control systems

Journal of the Franklin Institute, 1974
Abstract The conventional modal control theory is concerned with the problem of determining a state feedback matrix-valued gain which drives the system eigenvalues to prescribed positions. When the parameters of the open-loop system involve certain variations, the closed-loop eigenvalues, obtained by using a feedback gain determined as above, also ...
Tzafestas, S. G., Paraskevopoulos, P. N.
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Sensitivity of optimal control systems to measurement error

IFAC Proceedings Volumes, 1964
Publisher Summary This chapter describes the sensitivity of optimal control systems to measurement error. It presents a method of determining the sensitivity of an optimal system to inaccuracies in the measurement of initial state. There are two possible approaches: one can either derive the sensitivity of the system to specified errors of ...
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Optimally sensitive and adaptive control systems

AIChE Journal, 1971
AbstractThe sensitivity of optimally controlled systems to parameter variations is examined in this paper. Two general approaches toward compensating for these variations are employed. The first, for open‐loop systems, involves augmenting the performance index with sensitivity terms and minimizing this combined index.
S. D. Weinrich, Leon Lapidus
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Risk Sensitive Control of Complex Dynamical Systems

Proceedings of the 45th IEEE Conference on Decision and Control, 2006
While classical models of risk in insurance and financial markets have been effectively treated by the methods of stochastic and adaptive processes, a wide variety of new technologies will require qualitatively different methods which emphasize risk due to constraints on spatial and temporal distribution of information, risk due to scale, and risk due ...
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Sensitivity of large-scale control systems

Journal of the Franklin Institute, 1981
Abstract The purpose of this paper is to consider sensitivity of suboptimal decentralized control schemes for large-scale systems composed of interconnected subsystems. It is shown that sensitivity of suboptimal systems with respect to distortions in the local control laws can be expressed in terms of the classical notions of the gain and phase ...
Sezer, M. E., Siljak, D. D.
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Sensitivity Reduction in Aircraft Control Systems

IEEE Transactions on Aerospace and Electronic Systems, 1978
A method for reducing trajectory sensitivity to parameter perturbations for linear feedback systems is described. Application of the method to the design of aircraft control systems, with special reference to a helicopter forward flight control system, is illustrated.
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An Automatic Sensitivity Time Control System

IEEE Transactions on Aerospace, 1964
A completely transistorized automatic sensitivity time control (ASTC) circuit was designed and developed to operate in conjunction with a side-looking airborne radar surveillance set. The ASTC technique is a closed loop system which automatically controls the radar receiver gain vs range function in accordance with the average signal return.
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Sensitivity minimisation in computer control systems

Transactions of the Institute of Measurement and Control, 1990
The sensitivity of linear, shift invariant system models to parameter variations is discussed. Conditions minimising the sensitivity of the system model to these variations are derived, enabling stability margins to be maintained.
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On stochastic sensitivity control in discrete systems

Automation and Remote Control, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bashkirtseva, I. A., Ryashko, L. B.
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A location sensitive access control system

2012 Annual IEEE India Conference (INDICON), 2012
Role Based Access control (RBAC) is a popular security technique to impose restriction on different resources. To capture various emerging security requirements, RBAC has been evolved from time to time. Due to advancement in wireless devices new security requirements have come up and it is quite challenging for the existing access control models to ...
Vasu Devulapalli, Samrat Mondal
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