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 9 of 9 for “"Television signals"”.
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Hadamard transformcoding of television signals. A theoretical investigation of the adaptive coding of Hadamard transformed television signals. The use of computable objective measures for the assessment of local subpicture characteristics in selecting appropriate coders.
… means for assessing local characteristics of television subpictures in a Hadamard transform multicoder scheme is stated and discussed. Detailed investigations of transform domain coefficient statistical characteristics for different test images have been conducted. Both monochrome and colour …
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Receiver synchronization for the opportunistic use of integrated service digital broadcasting – terrestrial digital television signals
Abstract Opportunistic use of signals has become a method that is resorted to in research, and industry for various reasons. Although they come with some challenges which can be overcome by applying different techniques, a great number of advantages brought to the field by these signals have made …
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A position-location system utilizing geosynchronous communication satellites
… satellites at a time to relay synchronized television signals. The signals provide a timing system to measure the ranges from the satellites to the receiver. The least squares method is used to calculate the location of the receiver. A software model is developed to demonstrate the ability …
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An embedded, wireless-energy-harvesting platform (E-WEHP) for powering sensors using existing, ambient, wireless signals present in the air
… using the power present in ambient wireless signals in urban areas. This research is part of a bigger effort towards greening RF circuits and applications in order to reduce their pollution foot-print. Pollution due to modern electronics is primarily caused by non-biodegradable packaging …
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Coherent Mitigation of Radio Frequency Interference in 10-100 MHz
… resulting in no distortion of the underlying signals. This approach is of interest in weak signal applications such as radio astronomy, where the signal of interest may have interference-to-noise ratio much less than one, and so can be easily distorted by other methods. Environmental noise in …
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Iterative Memoryless Non-linear Estimators of Correlation for Complex-Valued Gaussian Processes that Exhibit Robustness to Impulsive Noise
… Guassian processes and real-world digital television signals collected using a software defined radio.
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Making Europeans: Pan-European television and the European Community
… This led to efforts to encourage pan-European television broadcasting through measures such as "Europa TV," the "Television Without Frontiers" directive and the MEDIA programme. The EC's interest in television was in part stimulated by technical innovations which facilitated the transmission of …
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Theoretical Study of Semiconductor Quantum Dot Lasers with Asymmetric Barrier Layers
… are able to transmit telephone, internet, and television signals through fiber optic cables over long distances. The amount of information able to be transferred is directly related to the bandwidth of the laser. By introducing asymmetric barrier layers, the modulation bandwidth of the laser …
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The impact of the TV white space unlicensed spectrum on the wireless industry competition
… needed for the successful transmission of TV signals. These unused portions of the UHF spectrum, popularly referred to as white spaces, represent a new opportunity for wireless networks, offering the potential for more unlicensed bandwidth and long transmission ranges. This thesis aims to …