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Erbium-doped fibre amplifiers and their effects on the phase noise of optical carriers and radio-over-fibre signalsPourbahri, Babak January 2000 (has links)
No description available.
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Real time secure communications using chaotic encryption systemsElkouny, Abdel-latif Ahmed Abdel-latif January 2003 (has links)
No description available.
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The reliability and efficiency of serial digital data in industrial communicationsEllis, David Lambert January 2000 (has links)
No description available.
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A practical theory of communicationMullarkey, William Joseph January 1993 (has links)
No description available.
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Radio channel assignmentShepherd, Mark January 1998 (has links)
No description available.
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Cellular optical wireless communications systemsParand, Farivar January 2002 (has links)
No description available.
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Simulation and analysis of adaptive routing and flow control in wide area communication networksNichols, S. J. January 1990 (has links)
This thesis presents the development of new simulation and analytic models for the performance analysis of wide area communication networks. The models are used to analyse adaptive routing and flow control in fully connected circuit switched and sparsely connected packet switched networks. In particular the performance of routing algorithms derived from the L(_R-I) linear learning automata model are assessed for both types of network. A novel architecture using the INMOS Transputer is constructed for simulation of both circuit and packet switched networks in a loosely coupled multi- microprocessor environment. The network topology is mapped onto an identically configured array of processing centres to overcome the processing bottleneck of conventional Von Neumann architecture machines. Previous analytic work in circuit switched work is extended to include both asymmetrical networks and adaptive routing policies. In the analysis of packet switched networks analytic models of adaptive routing and flow control are integrated to produce a powerful, integrated environment for performance analysis The work concludes that routing algorithms based on linear learning automata have significant potential in both fully connected circuit switched networks and sparsely connected packet switched networks.
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The design and use of a digital radio telemetry system for measuring internal combustion engine piston parametersHorler, Greg January 1999 (has links)
During the course of this project, a digital radio telemetry system has been designed and shown to be capable of measuring parameters from the piston of an internal combustion engine, under load. The impetus for the work stems from the need to sample the appropriate data required for oil degradation analysis and the unavailability of system to perform such sampling. The prototype system was designed for installation within a small Norton Villiers C-30 industrial engine. This choice of engine presented significant design challenges due to the small size of the engine (components and construction) and the crankcase environment. These challenges were manifest in the choice of carrier frequency, antenna size and location, modulation scheme, data encoding scheme, signal attenuation, error checking and correction, choice of components, manufacturing techniques and physical mounting to reciprocating parts. In order to overcome these challenges detailed analysis of the radio frequency spectrum was undertaken in order to minimise attenuation from mechanisms such as, absorption, reflection, motion, spatial arrangement and noise. Another aspect of the project concerned the development of a flexible modus operandi in order to facilitate a number of sampling regimes. In order to achieve such flexibility a two-way communication protocol was implemented enabling the sampling system to be programmed into a particular mode of operation, while in use. Additionally the system was designed to accommodate the range of signals output from most transducer devices. The sampling capabilities of the prototype system were extended by enabling the system to support multiple transducers providing a mixture of output signals; for example both analogue and digital signals have been sampled. Additionally, a facility to sample data in response to triggering stimuli has been tested; specifically a sampling trigger may be derived from the motion of the piston via an accelerometer. Ancillary components, such as interface hardware and software, have been developed which are suitable for the recording of data accessed by the system. This work has demonstrated that multi-transducer, mixed signal monitoring of piston parameters, (such as temperature, acceleration etc.) using a two-way, programmable, digital radio frequency telemetry system is not only possible but provides a means for more advanced instrumentation.
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Data-aided phase control in differential GMSK receivers for narrowband communicationsMahdavi, Ali Reza January 1998 (has links)
No description available.
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Enhanced frequency management for automatic HF radio communication systemsJowett, Antony Peter January 1989 (has links)
No description available.
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