Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"sampled-data systems"”.
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Identification of linear sampled data systems.
… transition matrix phi of a linear, stationary sampled data system operating in a stochastic environment. The estimator is shown to be unbiased and minimum variance under the condition of full observability of the state vector of the system. The estimator is also shown to be the Maximum …
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Analog computer simulation of sampled-data systems
… used to simulate most types of automatic control systems, Only a limited amount of work has been reported, however, involving analog computer simulation of sampled-data systems, This is to be expected since such systems are essentially digital in nature. The purpose of the work described in this …
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Time Optimal Control of Nonlinear Sampled-Data Systems
Made available in DSpace on 2014-12-08T22:23:37Z (GMT). No. of bitstreams: 1 6500935.pdf: 1878774 bytes, checksum: 5f5ca919dc06e52b34e05f580b3555af (MD5) Previous issue date: 1964
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Optimal pre- and post-filtering in noisy sampled-data systems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1986.
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Robustness Bounds For Uncertain Sampled Data Systems With Presence of Time Delays
… these networks have made their way into control systems. Today, in majority of applications, real-time networks like CAN (Controller-Area Network), Ethernet, FlexRay, ARINC, etc are used to close the control loop. However, the use of networks leads to communication constraints like transmission …
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Analysis and design of control systems by means of time domain matrices
… analysis and design for complex control systems. This method is the time domain infinite matrix method. The formulation of the infinite matrix follows from the convolution summation of sampled data systems The mathematical basis of the time domain matrix formulation is presented in a …
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A Comparator-Based Switched-Capacitor delta sigma modulator
… relatively new topology that replaces op-amps in sampled-data systems with a comparator and a set of current mirrors. CBSC is expected to lower power consumption, and to avoid several delicate tradeoffs of op-amp circuits. In this paper, the original single-ended CBSC block is extended to a fully …
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Reliable Decentralized Controller Design for Discrete/continuous-Time, Sampled-Data, and Multirate Systems
… actuators for both centralized and decentralized systems. The designs guarantee stability and an $H\sb\infty$-norm bound on the closed-loop system despite failures in any subset of that preselected set of sensors or actuators. The discrete-time divided-difference operator formulation facilitates …
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DC-DC converters with high efficiency over wide load ranges
… PFM mode operation is synchronous to allow sampled data systems to avoid sampling on switching transitions. In all modes of operation, the regulator output voltage is digitally programmable. This enables variable voltage architectures, in which the power supply of a digital system is …
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An experimental investigation into active damage control systems using positive position feedback for AVC
… as the actuator. Initial investigations into sampled-data systems using PPF are presented. The issues addressed are: stability of the sampled system, the effects of the sampling rate on the system, and degradation from predicted analog performance. A digital design procedure for the tuning …
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Disturbance attenuation with multi-sensing servo systems for high density storage devices
… limitation in magnetic recording physics, data storage industries are also looking into probe-based storage systems actuated by MEMS (Micro-Electrical-Mechanical-Systems) for high density nanometer scale recording. In this dissertation, novel control topologies incorporating multi- and …
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Consensus in multi-agent systems with time-delays
Different consensus problems in multi-agent systems have been addressed in this thesis. They represent improvements with respect to the state of the art. In the first part of the thesis in luding Chapters 2, 3, and 4, the state of the art of the representation and stability analysis of consensus …
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Robust adaptive sampled-data control design for MIMO systems: Applications in cyber-physical security
… extends the L1 adaptive control theory to sampled-data (SD) framework. Multi-input multi-output non-square (underactuated) systems are considered with different sampling rates for inputs and outputs. The sampled-data framework allows to address non-minimum phase systems, subject to less …