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Doppler Applications in LEO Satellite Communication Systems develops and presents an important class of techniques useful in the construction of little Low Earth Orbit (LEO) satellite communication systems. It centers on the very significant Doppler shift that attends communications through a LEO satellite and shows how this phenomenon can be exploited for an unexpected benefit. The techniques taught in the book are expected to be particularly attractive to system engineers because ground-based transceivers must generally compensate for the large Doppler component and therefore the necessary receiver processing loops are often already in place and expensed. This volume starts with a recounti...
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Examining the urban and architectural developments in Rome during the Pontificate of Julius II (1503–13) this book focuses on the political, religious and artistic motives behind the principal architect, Donato Bramante, and his ambition to create a unified urban/architectural scheme.
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We consider a network of devices, such as generators, fixed loads, deferrable loads, and storage devices, each with its own dynamic constraints and objective, connected by AC and DC lines. The problem is to minimize the total network objective subject to the device and line constraints over a time horizon. This is a large optimization problem with variables for consumption or generation for each device, power flow for each line, and voltage phase angles at AC buses in each period. We develop a decentralized method for solving this problem called proximal message passing. The method is iterative: At each step, every device exchanges simple messages with its neighbors in the network and then s...