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 “"Analogue-to-Digital Converters"”.
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Design techniques for Power-Efficient Delta-Sigma Analogue-to-Digital Converters
Since analogue information in our world is abundant, such as light, temperature, sound, voltage, current, and others, Analogue-to-Digital Converters (ADCs) are the key electronic components for the communication with the digital world, where all the signal processing in modern electronic systems …
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Theory and applications of delta-sigma analogue-to-digital converters without negative feedback
Analog-to-digital converters play a crucial role in modern audio and communication design. Conventional Nyquist converters are suitable only for medium resolutions and require analog components that are precise and highly immune to noise and interference. In contrast, oversampling converters can …
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A jittered-sampling correction technique for ADCs
In Analogue to Digital Converters (ADCs) jittered sampling raises the noise floor; this leads to a decrease in its Signal to Noise ratio (SNR) and its effective number of bits (ENOB). This research studies a technique that compensate for the effects of sampling with a jittered clock. A thorough …
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RHINO: reconfigurable hardware interface for computation and radio
… Their reconfigurable nature allows many digital signal processing (DSP) algorithms to be highly parallelised within the FPGA fabric, while their customisable I/O interfaces allow simple interfacing to analogue-to-digital converters (ADCs) and digital-to-analogue converters (DACs). …
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A high speed data acquisition system
Digital systems pervade the world around us. The interface between analogue data sources and these digital systems is the realm of analogue to digital converters (ADCs) that acquire digital snap-shots of data for further processing. Some applications require high sampling rates or high resolution …
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Fibre optic sensor for speed measurement
… of speed has evolved from pure mechanical to magnetoelectric and radio frequency (RF) based devices. There is however a demand for low-cost sensors capable of operating in potentially hazardous environments in which optical fibre sensors are more suited. In this thesis the development of a …
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Development and modelling of a versatile active micro-electrode array for high density in-vivo and in-vitro neural signal investigation
… of neurological cells has allowed much knowledge to be gathered regarding how living organisms are believed to acquire and process sensation. Although much has been learned about neurons in isolation, there is much more to be discovered in how these neurons communicate within large networks. The …
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RESTAURANT FOOD WASTE MANAGEMENT USING MICROWAVE PLASMA GASIFICATION TECHNOLOGY
… gasification. The developed system has been used to treat waste from a city centre fast food restaurant. The system was designed with the aim of reducing the amount of waste being sent to landfill by approximately 94%. The waste is mostly food based but also includes paper waste such as napkins. …
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Design and Implementation of an RFI Direction Finding System for SKA Applications
For radio astronomy telescopes to be able to perform observations of weak signals from space, they need to operate in a radio-quiet environment. Any radio frequency interference (RFI) will interfere with the ability of the telescope to collect data. With the proliferation of electrical and …