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 328 for “"Multiple-Input"”.
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Different Multiple Input Multiple Output Systems
The use of multiple antennas at the transmitter as well as at the receiver can greatly improve the capacity of a wireless link when operating in a rich scattering environment. In such an arrangement all transmitting antennas radiate in the same frequency band so the overall spectral efciency …
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Complexity reduction in multiple input multiple output algorithms
… of wireless systems to solve the problem. Multiple Input Multiple Output (MIMO) is one solution that employs multiple antennas at the transmitter and receiver. The MIMO algorithms are usually highly complex and computationally intensive. This results in increased power consumption and …
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Digital current mode control for multiple input converters
… of applying digital current mode control on multiple-input (MI) converters is studied. As for MI topologies having a central energy transfer inductor, the predictive constant on-time current-mode control can greatly reduce both the design and digital realization efforts needed. By doing …
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Multiple input multiple output channel measurements and system performance
… conventional systems, a concept referred to as Multiple-Input Multiple-Output or MIMO not only thrives under multipath conditions but also has the potential to allow for substantial increases in capacity. MIMO systems use a combination of multiple antenna arrays at the transmitter and receiver …
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Design, Characterization and Application of a Multiple Input Stethoscope Apparatus
… calibration and possible applications of a multiple transducer stethoscope apparatus were investigated. The multi-transducer sensor array design consists of five standard stethoscope diaphragms mounted to a rigid frame for a-priori knowledge of their relative spatial locations in the x-y …
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Advanced Multiple-Input and Multiple Output Technology in Wireless Communication Networks
… theory has revealed that the capacity of a multiple-input and multiple-output (MIMO) channel can increase linearly with the number of antennas. However, besides deploying multiple antennas at base stations, there are many challenges to develop MIMO to further boost the wireless network …
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Multiple Input, Single Output DC-DC Conversion Stage for DC House
… thesis project, a proposed architecture for the multiple input, single output conversion stage for the DC House was designed, simulated, and tested. This architecture allows for multiple different input sources to be used to create a single higher power output source. The design uses a DC-DC …
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Cycle-to-cycle control of multiple input-multiple output manufacturing processes
… Next, we extend these SISO results to multiple input-multiple output processes. Gain selection, stability, and process variance amplification results are developed. Then, the limitation of imperfect knowledge of the plant model is imposed. This is consistent with manufacturing …
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Machine Learning-Based Receiver in Multiple Input Multiple Output Communications Systems
Bridging machine learning technologies to multiple-input-multiple-output (MIMO) communications systems is a primary driving force for next-generation wireless systems. This dissertation introduces a variety of neural network structures for symbol detection/equalization tasks in MIMO systems …
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Transmission Strategies for Wireless Multi-user, Multiple-Input, Multiple-Output Communication Channels
Multiple-Input, Multiple-Output (MIMO) processing techniques for wireless communication are of interest for next-generation systems because of their potential to dramatically improve capacity in some propagation environments. When used in applications such as wireless LAN and cellular telephony, …
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Guessing Random Additive Noise Decoding in Coded Multiple-Input Multiple-Output Systems
Multiple-Input Multiple-Output (MIMO) wireless communication systems incorporate forward error correction (FEC) to achieve high reliability under fading and interference. In this thesis, we explore the emerging FEC paradigm of Guessing Random Additive Noise Decoding (GRAND) in a point-to-point MIMO …
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PLAYBACK BUFFERING AND CONTROL FOR LINEAR MULTIPLE INPUT MULTIPLE OUTPUT NETWORK CONTROL SYSTEMS
… the previous work, which considered only single input single output (SISO) systems, our model is generalized for multiple input multiple output (MIMO) systems. We simulate our control scheme on owd and rtt data collected by three different methods. We define our own performance index and …
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Investigation of multiple-input single-output power conversion for advanced solar cell systems
Laterally-Arrayed Multiple-Bandgap (LAMB) solar cells provide the potential for improved energy capture, but require sophisticated interconnection and power conversion. Different topologies for a cell block interconnection were investigated and equations providing the estimated losses in those …
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Multiple-Input Single-Output system identification techniques using the pebble bed modular reactor data
… very useful. The focus of this study is to use Multiple-Input Single-Output (MISO) system identification techniques on data obtained from the Flownex simulation package. These techniques are used to obtain a (MISO) mathematical model for the Pebble Bed Modular Reactor (PBMR). MISO system …
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Multiple Input Single Output Converter with Uneven Load Sharing Control for Improved System Efficiency
… paper presents the development and study of multiple-input single-output converter (MISO) for the DC House project that utilizes a controller to maximize the overall converter’s efficiency. The premise of this thesis is to create uneven load current sharing between the converters at different …
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Multiple-input multiple-output visible light communication receivers for high data-rate mobile applications
… capacity from mobile devices, we investigate multiple-input multiple-output (MIMO) VLC to achieve multiplexing capacity gains and to allow multiple users to simultaneously transmit without disrupting each other. Previous approaches to receive VLC signals have either been unable to …
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Design and Construction of 1800W Modular Multiple Input Single Output Non-isolated DC-DC Converters
… of non-isolated DC-DC converters to create a Multiple Input Single Output (MISO) converter for combining multiple renewable energy sources into one single output. This MISO uses the four-switch buck-boost topology to output a single 48V from multiple nominal 24V inputs. The MISO converter …
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Design, Fabrication, and Measurement of a Multiple-Input Multiple-Output (MIMO) Antenna for Mobile Communication
… Characterization of the MIMO antenna included input impedance, scattering parameters and radiation pattern cross sections that were all measured from 500-6500 MHz inside an anechoic chamber. The measurement results indicated four main operating regions of the multiband antenna centered at 875 …
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A Microgrid Architecture With Multiple-Input DC/DC Converters: Applications, Reliability, System Operation, and Control
… architecture operation and control are analyzed. Multiple-input converter power budget equations are derived and verified through simulations and experiments. Issues in distributed architectures, such as autonomous control, and fault detection and mitigation are also addressed. An autonomous …
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