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Articles 1 - 7 of 7
Full-Text Articles in Engineering
Application Specific Customization And Scalability Of Soft Multiprocessors, Deepak C. Unnikrishnan
Application Specific Customization And Scalability Of Soft Multiprocessors, Deepak C. Unnikrishnan
Masters Theses 1911 - February 2014
Soft multiprocessor systems exploit the plentiful computational resources available in field programmable devices. By virtue of their adaptability and ability to support coarse grained parallelism, they serve as excellent platforms for rapid prototyping and design space exploration of embedded multiprocessor applications. As complex applications emerge, careful mapping, processor and interconnect customization are critical to the overall performance of the multiprocessor system. In this thesis, we have developed an automated scalable framework to efficiently map applications written in a high-level programmer-friendly language to customizable soft-cores. The framework allows the user to specify the application in a high-level language called Streamit. After …
A Hardware Framework For Yield And Reliability Enhancement In Chip Multiprocessors, Abhisek Pan
A Hardware Framework For Yield And Reliability Enhancement In Chip Multiprocessors, Abhisek Pan
Masters Theses 1911 - February 2014
Device reliability and manufacturability have emerged as dominant concerns in end-of-road CMOS devices. Today an increasing number of hardware failures are attributed to device reliability problems that cause partial system failure or shutdown. Also maintaining an acceptable manufacturing yield is seen as challenge because of smaller feature sizes, process variation, and reduced headroom for burn-in tests. In this project we investigate a hardware-based scheme for improving yield and reliability of a homogeneous chip multiprocessor (CMP). The proposed solution involves a hardware framework that enables us to utilize the redundancies inherent in a multi-core system to keep the system operational in …
Implementation Of Network Services Supporting Multi-Party Policies, Santosh C. Proddatoori
Implementation Of Network Services Supporting Multi-Party Policies, Santosh C. Proddatoori
Masters Theses 1911 - February 2014
Next-generation network architectures support complex services in the data-path of routers. A key challenge is the integration of multiple policy constraints from senders, receivers, and network providers when using such services. We introduce a multi-party service specification framework based on our “service socket” API. We illustrate the operation of this approach in an IPTV scenario that uses a video transcoding service implemented on a Cisco ISR platform.
An Uhf Frequency-Modulated Continuous Wave Wind Profiler - Development And Initial Results, Iva S. Kostadinova
An Uhf Frequency-Modulated Continuous Wave Wind Profiler - Development And Initial Results, Iva S. Kostadinova
Masters Theses 1911 - February 2014
The following work represents the research attempt of Dr. Frasier's group to develop a FMCW wind profiler for atmospheric boundary layer studies. The hardware development and integration are described in detail.
Information Theoretic Identification And Compensation Of Nonlinear Devices, Sepideh Dolatshahi
Information Theoretic Identification And Compensation Of Nonlinear Devices, Sepideh Dolatshahi
Masters Theses 1911 - February 2014
Breaking the anonymity of different wireless users with the purpose of decreasing internet crime rates is addressed in this thesis by considering radiometric identification techniques.
Minute imperfections and non-idealities in the different transmitter components, especially the inherent nonlinearity in power amplifiers, result in variations in their Volterra series representations which could be utilized as a signature.
For a two user scenario, signal processing algorithms based on generalized likelihood ratio test(GLRT) and the classical likelihood ratio test are introduced and the resulting receiver decision rules and performance curves are presented. These algorithms consider the high signal to noise ratio(SNR) case where …
System Performance Of Absolute Quartz-Crystal Barometers With Sub-Microbar Precision, Ganesh Kumar Subramanian Ananthanarayanan
System Performance Of Absolute Quartz-Crystal Barometers With Sub-Microbar Precision, Ganesh Kumar Subramanian Ananthanarayanan
Masters Theses 1911 - February 2014
In this thesis, the performance of absolute quartz-crystal barometers is presented, and their ability to measure, with sub-microbar precision, atmospheric pressure fluctuations with periods as short as a few seconds is demonstrated. The first observations of ocean-generated atmospheric infrasound with periods of about 5 s and sub-microbar amplitudes, called microbaroms, using single absolute barometers are presented. These barometers can measure microbaroms with amplitudes down to 50 nanobars and the 1-h estimates of microbarom amplitudes calculated from data collected independently with three collocated barometers differed by only a few nanobars. The observed microbaroms have amplitudes between 0.2 microbars and 1 microbar …
Design And Development Of A Ka-Band Interferometer For Cryospheric Applications, Harish K. Vedantham
Design And Development Of A Ka-Band Interferometer For Cryospheric Applications, Harish K. Vedantham
Masters Theses 1911 - February 2014
Topographic maps of the earth are essential to geographic and earth science studies. In particular, mapping and estimating physical parameters of the earth’s water and ice cover are critical to global climate studies. Among these, snow, ocean and fresh water topography, snow wetness and water equivalent are of immediate interest to the scientific community.
Challenges in the instrument development and deployment posed by these required measurements are twofold. Firstly, these measurements are required to have global coverage, yet maintain stringent spatial resolution and accuracy margins. Secondly, snow topography measurement requires minimal electromagnetic wave penetration through snow, hence requiring the use …