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 48 for “"multi-input multi-output (MIMO)"”.
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Control oriented concentrating solar power (CSP) plant model and its applications
… to develop a three-level controller that uses multi-input-multi-output (MIMO) control technology to minimize the effect of these disturbances, improve plant performance, and extend plant life. The controller can be readily installed on any vendor supplied state-of-the-art control hardware.^ We …
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Design, analysis, and validation of Interface electronics for use in axially coupled 2-DOF brushless motor control system
… isolate the encoder position data and control output commands. The interface board was designed such that it does not require any additional power supplies for operation and can withstand use by students in a laboratory context. The resulting interface board eliminates the possibility of …
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Exploring Performance Limits of Wireless Networks with Advanced Communication Technologies
… network throughput. Some examples include multi-input multi-output (MIMO), full duplex, cognitive radio, mmWave, among others. An important research direction is to understand the impacts of these new technologies on network throughput performance. Such investigation is critical not only …
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Demonstration and evaluation of co-channel DBPSK source separation
… has centered around the design of complex multi-input-multi-output (MIMO) and code division multiple access (CDMA) systems, single antenna source separation presents a simple alternative that is suitable in settings such as RFID where sources are naturally synchronized. Motivated by the …
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Development of a High Speed Data Acquisition System for Spark Ignition Engine
Full engine control can only be accomplished with multi-input multi-output (MIMO) control system requiring measurement of variables for which no sensor/instrument is yet available in the Renewable Energy and Engines Laboratory, therefore a less detailed single input single output (SISO) engine …
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Structured linear algebra problems and applications to system identification
… an on-line algorithm for the solution of the multi-input/multi-output (MIMO) state space identification problem. Finally, theoretical results are given that relate to the problem of determining the distance of a state space model from a state space model that is non-minimal. This may be …
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Modeling and adaptive control of indoor unmanned aerial vehicles
… of indoor autonomous flight. An L1 adaptive output feedback control design process is presented in which control parameters are systematically determined based on intuitive desired performance and robustness metrics set by the designer. Flight test results using a quadrotor helicopter …
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Smart double panel with decentralised active damping units for the control of sound transmission
… the double panel vibration is implemented using Multi-Input-Multi-Output (MIMO) decentralised velocity feedback loops. The loops are applied via an array of electrodynamic force actuators and collocated velocity sensors. The actuators are located in an air cavity between the two panels such that …
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Designing Low -Power Communication Systems via Noise-Tolerance
… is proposed and extended to the design of multi-input, multi-output (MIMO) communication systems. Simulation results of a Gigabit Ethernet 1000Base-T transceiver are evaluated.
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Design of control systems for focused and unfocused intracavitary ultrasound arrays for the thermal treatment of prostate disease
… for prostate disease can be modeled as a multi-input multi-output (MIMO) system. For both focused and unfocused ultrasound arrays, the control of this MIMO system can follow either of two paths. First, a method of system identification can be used to derive a system model from which a gain …
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Active control of broadband acoustic radiation from structures
… demonstrated for systems excited by single and multiple frequency disturbances. This work is an extension of ASAC techniques to the control of sound radiation from structures excited by a disturbance with broadband frequency content. An adaptive, multi-input multi-output (MIMO), feedforward …
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Adaptive output-feedback control and applications to Very Flexible Aircraft
… be measured accurately, which necessitates an output-feedback multi-input multi-output (MIMO) control approach. The focus of this thesis is on an adaptive output-feedback controller for a generic class of MIMO plant models with an emphasis on the control of a VFA so as to execute desired flight …
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Linear-time invariant Positive Systems: Stabilization and the Servomechanism Problem
… the well known property of confining the state, output, and/or input variables to the nonnegative orphant, are of great practical importance, as the nonnegative property occurs quite frequently in numerous applications and in nature. These type of systems frequently occur in hydrology where they …
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Cooperative DVB-H: Raptor-Network Coding Protocols for Reliable and Energy Efficient Multimedia Communications
Reliable and energy-efficient delivery of multimedia to mobile terminals in dynamic networks is a very challenging problem. In this thesis, we focus on a cooperative extension to the Digital Video Broadcasting – Handheld (DVB-H) standard, forming a cooperative broadcast network whereby …
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Low complexity multicast beamforming in massive MIMO multi-cell networks
In this thesis, we consider downlink multicast beamforming in massive multi-input multi- output (MIMO) multi-cell networks. Both non-cooperative and cooperative beamforming scenarios are considered. For the non-cooperative scenario, aiming at maximizing the minimum signal-to-interference-plus-noise …
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A method for approximating and controlling the distributed parameter model of a MIMO chemical diffusion system
… properly study the effects of various chemical inputs to an angiogenic assay, it is crucial to have strict control over the delivery of these chemicals, which are carried to the sprouting stie via diffusion. More specifically, we use, as a model system, a microfluidic, in vitro assay in which a …
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Performance evaluation of detection algorithms for MOMI OFDM systems
Introduction of Multi Input Multi Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) as the base air interface method for Next Generation Network (NGN) will face a number of challenges from hostile channel conditions to interference from other users. This would result in an increase of …
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Radio frequency miniature passive devices: ferrite antennas and inductors
… gain improvement are achieved. A high-isolation multi-input multi-output (MIMO) antenna array design is demonstrated with miniature ferrite antenna elements for long-term evolution (LTE) mobile technology. Furthermore, micron-thick ferrite film deposition process is developed using DC magnetron …
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Complexity reduction in fuzzy inference systems
… or otherwise) to a large functional multi-input, multi-output (MIMO) system, since the addition of new antecedents quickly renders the system intractable. While much work has addressed rule explosion, most complexity reduction techniques entail post-design offline processing. These …
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Multi-objective inversion-based control of building integrated energy systems
… the adoption and coordinated operation of a multitude of energy sources such as combined heat and power (chp) units, thermal energy storage (tes), electrical energy storage (ees) and photovoltaics (pv). Making these systems work together presents a control challenge for their efficient use, …
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