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 17 of 17 for “"bandwidth control"”.
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Wide Bandwidth Control Electronics For Gan-Based Pebbs
… the simulation/hardware interface. A very high-bandwidth is required by the simulation/hardware interface in order to minimize problems related to the stability of a hybrid system. The main problem is that very high speed switches are usually not available for the power converter which is the …
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Active Antenna Bandwidth Control Using Reconfigurable Antenna Elements
… introduces the concept of reconfigurable antenna bandwidth control and how advances in switch technology have made these designs realizable. Specifically, it details the development of three new antennas capable of reconfigurable bandwidth control. The newly developed antennas include the …
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Auto-bandwidth control in dynamically reconfigured hybrid-SDN MPLS networks
… of this work is based on the steady evolution of bandwidth demanding technology, which currently and more so in future, requires operators to use expensive infrastructure capability smartly to maximise its use in a very competitive environment. In this thesis, a traffic engineering control loop is …
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Design of and Decentralized Path Planning for Platoons of Miniature Autonomous Underwater Vehicles
Many successful control schemes for land-based or air-based groups, or platoons, of autonomous vehicles cannot be implemented in underwater applications because of their dependence upon high-bandwidth communication. In current strategies for controlling groups of autonomous underwater vehicles …
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Data driven low-bandwidth intelligent control of a jet engine combustor
<p>This thesis introduces a low-bandwidth control architecture for navigating the input space of an un-modeled combustor system between desired operating conditions while avoiding regions of instability and blow-out. An experimental procedure is discussed for identifying regions of instability and …
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Modeling and control of a silicon substrate heater for carbon nanotube growth experiments
… bulk nanotube growth. For this thesis, a heating control system was designed and implemented for eventual use in CNT growth experiments. The computer program that controls the heater is user-adaptable, so that an experimenter can easily change the desired temperatures at various points of the …
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Slow and Fast Light Using Quantum-Dot and Quantum-Well Semiconductor Optical Amplifiers
Controlling the group velocity of light has great potential applications in future optical communication, photonic computing, and microwave signal processing. These applications have recently triggered immense experimental and theoretical interest in the research community. Numerous studies report …
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Load-Aware Traffic Control in Software-Defined Enterprise Wireless Local Area Networks
… of Experience (QoE), intelligent network traffic control is needed. Software Defined Networking (SDN) is an emerging architecture and intensively discussed as one of the most promising technologies to simplify network management and service development. In the SDN architecture, network management …
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A comprehensive system for non-intrusive load monitoring and diagnostics
… and powerful separation between on-site, high-bandwidth processing operations and off-site, low-bandwidth control and visualization. Specific analysis can be performed as data is acquired, or retroactively as needed, using short filter scripts written in Python and transferred to the monitor. …
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On the protection of compact DC power systems with high-power energy storage
… power electronic converter interfaces with high bandwidth control systems and current limiting functionality. To date, the literature has primarily focused on the control and behaviour of high-power ESS during normal operating conditions with an emphasis on the systems level benefits they offer. …
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Design and Control of Charge-Pumped Reboost Converter for PV Applications
… conditioning stage which allows for numerous control methods and energy management options. Traditional systems group PV sources into arrays in order to increase operating voltage and power to levels where it is practical to connect them to the utility grid. Grid-tied PV has the potential to …
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Application Aware Multicasting in VPLS Networks.
… with efficient utilization of the available bandwidth. This has driven service providers to seek more reliable means of delivering services to their customers. As businesses expand both financially and geographically service providers have deployed Wide Area Networks (WANs) to deliver …
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Control and Modeling of High-Frequency Voltage Regulator Modules for Microprocessor Application
… regulator module (VRM) challenges of high bandwidth control with fast transient response, high current output, simple implementation, and efficient 48V solution are tackled in this dissertation. With the push for control bandwidth to meet design specifications for microprocessor VRM with …
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Enhanced Gate-Driver Techniques and SiC-based Power-cell Design and Assessment for Medium-Voltage Applications
… long-term reliability by enabling active thermal control, monitoring, and prognostics. An online Tj estimation is accomplished by generating integrated intelligence on the GD level. The developed Tj sensor exhibits a maximum error less than 5 degrees Celsius, having excellent repeatability of 1.2 …
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High-bandwidth high-precision robust x-ray microscopy - a control systems approach
… thesis, a systematic framework for designing control for high-precision positioning stages of Velociprobe X-ray microscope at Advanced Photon Source (APS) at Argonne National Laboratory (ANL) is presented. In particular, our focus is on maintaining a precise position of the optics scanning …
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Modeling and Stability Analysis for Multiphase Constant On-Time Control With Phase Overlapping
… current-mode and V² constant on-time (COT) control techniques are widely used because these control methods can help increase control bandwidth, minimize output impedance, and achieve fast transient response with less output capacitance. To supply large current demands, the phase count of …
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Power Architectures and Design for Next Generation Microprocessors
… first-stage, along with the scalability and high bandwidth control of the second-stage, allows this architecture to achieve high-efficiency and power density. This architecture is simpler to adopt by industry, by plugging the unregulated converter before the existing multi-phase buck converters on …