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 96 for “"Systems and Communications"”.
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Energy And Power Systems Simulated Attack Algorithm For Defense Testbed And Analysis
… course of many decades with the usage of cyber systems and communications such as Supervisory Control And Data Acquisition (SCADA); however, due to their connectivity to the internet, the cyber-power system can be infiltrated by malicious attackers. Encryption is not a singular solution. …
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Industrial control via a state language implementation on the transputer architecture
… user. As a result, control strategy development and maintenance can be accomplished without the need for professional software engineers. Furthermore, use of the Transputer architecture allows the exploitation of parallel processors. The thesis work involves the development of a prototypical …
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A Neural Network Receiver for EM-MWD Communication
<p>Baseband digital communication in electro-magnetic measurement while drilling (EM-MWD) systems is often corrupted by non-white surface noise. The inability to reliably decode the transmitted signals in a noisy environment limits the depth at which EM-MWD systems can operate. Correlation …
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Implementation of Orthogonal Frequency Division Multiplexing with FPGA
… there have been dramatic shifts in cellular and telecommunication industries. As smartphones are dominating on the cellphone market, more and more people use these mobile devices to access internet either through third generation network or IEEE802.11 wireless local area network. Orthogonal …
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Knowledge enhanced framework for the design and development of e-workflow systems
… only two factors of production: Labour and capital. With the advent of the Internet and e-business, the economy is now changing to knowledge and global economy in which information and knowledge are becoming the main factors and the primary wealth-creating assets. Land, labour and …
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RF Front End for an Integrated Silhouette Capture and Boundary Detection Frequency Modulated Continuous Wave Ultra-Wideband Radar System for the Extension of Independent Living
<p>Limitations of current eldercare monitoring systems leave a need for new solutions. A monitoring system based on a frequency modulated continuous wave ultra-wideband short-range radar is proposed for this application. The complete proposed monitoring system is comprised of four blocks: boundary …
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UHF RFID Antenna Impedance Matching Techniques
<p>Radio Frequency Identification (RFID) systems use electromagnetic signals to wirelessly identify and track RFID-tagged objects. A reader transmits a carrier wave request signal to an RFID tag, which then transmits a unique identification signal back to the reader. Applications include supply …
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Locating Unknown Interference Sources with Time Difference of Arrival Estimates
<p>Adaptive spectrum sharing between different systems and operators is being deployed in order to make use of the wireless spectrum more efficiently. However, when the spectrum is shared, it can create situations in which an operator is unable to determine the identity of an interferer …
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Atomic Broadcast in Heterogeneous Distributed Systems
… possessing a dominant effect on both performance and robustness of distributed systems. Distributed applications rely on a multitude of protocols for the support of these services. Of crucial importance are multicast protocols. Reliable multicast protocols enhance the efficiency and robustness of …
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Software Defined Radio For Hybrid Beamforming Applications
… in both licensed networks such as LTE network and unlicensed network such as IEEE802.11ac WiFi. The scope of work for this thesis is to leverage the benefits of beamforming techniques and software defined radio platform in developing a fully functioning LTE testbed. The testbed can be further …
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Design and Verification of a LabVIEW Automated Antenna Radiation Pattern Measurement System
… student education in the areas of antennas and wireless communications. An anechoic chamber is a room designed to suppress electromagnetic radiation reflections so that accurate measurement of radio frequency (RF) systems such as wireless radios and antennas can take place. Despite the fact …
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A Highly Abstracted Method of FPGA-Based Development for Secondary Surveillance Radar Transpond Detection
… scratch. Time to market, cost of development, and the level of training required for designers all can be reduced with a simplified and abstracted design strategy. This project intends to demonstrate a graphical user interface (GUI) layer of abstraction on top of existing commercially produced …
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A GPS Signal Generator Using a ROACH FPGA Board
… tool. It allows for testing of GPS receivers, systems, and anti-spoofing algorithms. With the increased popularity of software defined radios (SDRs) merging GPS signal simulators and SDRs is a natural choice. A detailed review of the construction of a GPS signal generator using the ROACH …
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A Framework for Incident Detection and notification in Vehicular Ad-Hoc Networks
… over $75 billion in lost worker productivity and over 8.4 billion gallons of fuel. Further, the National Highway Traffic Safety Administration (NHTSA) indicates that congested roads are one of the leading causes of traffic accidents, and in 2005 an average of 119 persons died each day in motor …
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Node localization in underwater sensor networks (UWSN)
… nodes have knowledge of their own locations and communicate with sensor nodes in acoustic or magnetic induction (MI) means. The sensor nodes utilize the communication signals and the locations of anchor nodes to locate themselves and propagate their locations through the network.</p><p>For …
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