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 20 of 35 for “"Bang-Bang"”.
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Towards qubit noise spectroscopy by quantum bang-bang control
Quantum bang-bang control is a method of suppressing decoherence in qubits [VKL99, VL98]. To date, mathematically rigorous treatments of quantum bang-bang control offered little intuition. To complement existing approaches and to seek better understanding, I present intuitive pictures to think …
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Theory and implementation of digital bang-bang frequency synthesizers for high speed serial communications
… the theory and implementation of a digital bang-bang frequency synthesizer for application in the field of high speed serial data communications systems is presented. As major building blocks, the synthesizer architecture features a Binary Phase Detector (BPD), a Digital Loop Filter and a …
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Real-time control of soil moisture for efficient irrigation
… real-time closed-loop controller is a bang-bang controller that applies water at a predetermined rate, duration, and minimum soil moisture. Due to the ease of installation of soil moisture sensors, this technology has been installed around the world. There have been few studies on …
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Non-linear digital control of a McKibben muscle system
… was able to implement and compare a standard bang-bang controller and experimental non-linear digital Proportional (P) controller. The feedback mechanism is based on the input given from Flock-of-Birds sensor to achieve a desired position. The results show the expected instability of the …
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System architecture for mode-matching a MEMS gyroscope
… feedback mechanism, a linear controller and a bang-bang controller. The bang-bang controller was found to produce better results, and was able to bring a pre-fabricated sensor die to mode-match and achieve a resolution floor of 12°/hr.
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Hydrodynamics of magnet-coil actuated robotic fish
… identified that the discrete tail beat from the bang bang control creates vortex pairs at each start or stop motion of the caudal fin. Moreover, the wake structure from the shark Aquabot tail beat creates a wake structure similar to live dogfish sharks. Since the design of the Scuba Fish allowed …
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Optimal evasion against a proportionally guided pursuer
… pursuer. The optimal controls are shown to be 'bang - bang' with the number of switches depending on the pursuer’s navigation gain and on the particular constraints of each case.
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Study of spray-cooling control for maintaining metallurgical length or surface temperature during speed drop for steel continuous casting
… table control 3), time-constant control and 4), bang-bang control. The performance of the above control methods is evaluated in terms of the metallurgical length deviation (the maximum metallurgical length increase/decrease after the speed drop). Based on spray patterns that produce the same …
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Impacts of managed realignment on low-lying coasts
… the first criterion are shown to be satisfied by bang-bang and singular controls. A full characterisation of the switchings on intervals of bang-bang controls is presented as well as a discussion on the optimality of singular controls. For the second performance criterion an optimal control for …
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Development of a Microscopic Emission Modeling Framework for On-Road Vehicles
… shortcomings, namely; they either produce a bang-bang control system because they use a linear fuel consumption versus power model or they cannot be calibrated using publicly available data and thus require expensive laboratory or field data collection. Consequently, this dissertation …
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Development of a Supervisory Control Unit for a Series Plug-in Hybrid Electric Vehicle
… first controller implemented was a simplified bang-bang controller to operate at the global minimum BSFC. A power-tracking controller was then developed to minimize powertrain losses. The power-tracking controller substantially reduced the vehicles energy consumption on simulated EPA drive …
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Using theatre education as a medium for bullying prevention
… students rehearsed and produced a play, <em>Bang, Bang, You're Dead</em>, designed to create prevention awareness. The Advanced Acting class, eighteen junior and senior level high school students, went through a continuum of change during the study. There was a visible change in their …
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5GHz CMOS resonant clock buffer with quadrature generation for fiber optic applications
… signals and drive the clock inputs of a bang-bang half-rate phase detector in a 10GBit/sec Clock and Data Recovery Circuit. The 0.13um CMOS implementation shows significant power savings. A useful closed form expression for jitter transfer characteristic of generic linear-time-invariant …
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Optimal sampling and switching policies for linear stochastic systems
… problem with a stochastic process driven by a bang-bang controller. We obtain the optimal times to switch the control signal that determines the drift rate of the process. For the cases handled in this thesis, the results suggest the optimality of the simplest event-triggered sampling policy …
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Predictive and adaptive extremal control
… control strategy for second order relay or bang-bang control systems is investigated along with modifications of this strategy for third order systems. One basis of this strategy is the utilization of a model, a replica of the plant, run in a fast-time mode so as to obtain the future output …
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APPLICATION OF ARTIFICIAL INTELLIGENCE TO STATIC VAR SOURCE CONTROL FOR IMPROVING POWER SYSTEM DAMPING
… based on Lyapunov function analysis and applies bang-bang control theory. With the FLC controllers, the total SVC control configuration is composed of a conventional voltage regulation branch as well as an auxiliary FLC branch arranged in parallel. Control signals are generated from each control …
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Energy-efficient wireline transceivers
… with novel frequency acquisition scheme based on bang-bang phase detector (BBPD) and a ring oscillator-based fractional-N PLL as the low noise wide range DCO in the CDR loop; (3) a source-synchronous energy-proportional link with dynamic voltage and frequency scaling (DVFS) and rapid on/off (ROO) …
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Hypersonic flight strategies for supersonic retropropulsion at Mars
… supersonic retroprolusion ignition states. Bang-bang control in the hypersonic flight regime is shown to be optimal for targeting specific state values at terminal descent initation and for minimizing propellant use during propulsive descent. A trade-off between altitude and flight-path …
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Sensor Craft Control Using Drone Craft with Coulomb Propulsion System
… a sensor craft moves across the drone plane. A bang-bang control method with a singularity check can avoid this problem but may lose formation control as the relative distances grow bounded. A bang-coast-bang control method utilizing a reference trajectory profile and drone rest control is …
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