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 10 of 10 for “"Receiver Systems"”.
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Design and Analysis of Telescope Receiver Systems for Future Far-Infrared Missions
… In addition, analysis was carried out on the receiver of the Large Latin American Millimetre Array (LLAMA) telescope, currently under construction in Argentina. Based on existing Atacama Large Millimetre/submillimetre Array (ALMA) telescope designs, LLAMA is an independent instrument that will …
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Submillimeter heterodyne spectroscopy of star forming regions
… deployment of two sub-mm wave heterodyne array receivers. Polestar is a 4 pixel (2 x 2) heterodyne array built for operation in the 810 GHz atmospheric window. It is in operation at the AST/RO telescope at the South Pole. This receiver has increased imaging speed in this band at AST/RO by a …
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Delay gains from network coding in wireless networks
… a stream of incoming files to multiple receivers over stochastic time-varying channels with non-zero erasure probabilities. The base station charges a price per receiver per file with the aim of maximizing its profit. Customers who wish to transmit files to the receivers decide to enter …
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Optical Characterisation of Astronomical Submillimetre Receivers including ALMA Bands 5 and 9
… is the analysis of long wavelength quasioptical receiver systems operating within the Terahertz and submillimetre wavebands. Specific attention is paid to the front-end coupling optics of the Band 5 and Band 9 receiver channels of the Atacama Large Millimetre Array (ALMA). The theory of Gaussian …
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Optimisation of collector locations and pipe networks for dish–Rankine power plants
… parabolic trough collectors, and central receiver systems. We find that the annual thermal energy delivered to the central power block by the optimised dish-Rankine field is approximately 120% of that delivered by a central receiver system with the same nameplate generation capacity, which …
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Optimisation of collector locations and pipe networks for dish–Rankine power plants
… parabolic trough collectors, and central receiver systems. We find that the annual thermal energy delivered to the central power block by the optimised dish-Rankine field is approximately 120% of that delivered by a central receiver system with the same nameplate generation capacity, which …
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Using a co-located GNSS radio occultation payload for microwave radiometer calibration
… (RO) instrument with Global Navigation Satellite Systems (GNSS). The radiometer and RO receiver periodically observe the same volume of atmosphere near the earth's limb, allowing for overlapping, or collocated, measurements that can be used to calibrate the radiometer. This method leverages the …
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Efficient Magnetic Resonance Wireless Power Transfer Systems
… of magnetic resonance wireless power transfer systems. Different factors have different effects on the performance and the efficiency of the maximum transfer of power in the system. These factors are: the resonance frequency; the quality factor of the resonators; the value and shape of the …
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Exploiting Signals of Opportunity for High-Precision PNT: Optimized Bayesian Estimation Across 5G and LEO Networks
… positioning, navigation, and timing (PNT) systems. While traditional global navigation satellite systems (GNSS) degrade severely in deep urban canyons, emerging terrestrial 5G millimeter-wave and non-terrestrial low Earth orbit (LEO) satellite signals of opportunity offer highly promising …
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A Neural Network Receiver for EM-MWD Communication
… 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 receivers, which are optimal in the presence of …