Searched for: subject%3A%22SAR%22
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Put, S.C. (author)
The research presented in this M.Sc. thesis focuses on the inversion of earthquake slip distributions using Synthetic Aperture Radar Interferometry (InSAR). This space-borne remote sensing technique enables one to observe surface deformation caused by earthquakes. These observations can be used to estimate earthquake slip distributions. A slip...
master thesis 2008
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Raskovic, M. (author)
Multicore systems have become an indispensable part of our everyday life. They represent a viable alternative for increasing processor performance without hitting the memory and power walls. However, the shift from traditional programming to multicore programming has a critical influence in three dimensions: the applications, the software tools,...
master thesis 2010
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Van den Oever, M. (author)
Monitoring critical structures such as oil pipe lines or dikes is essential for performing in-time and high-quality maintenance. Such structures cover a large area or are in abandoned places. Consequently, performing physical inspections by dedicated personnel is either impossible or very expensive. Alternatively such structures can be inspected...
master thesis 2012
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Astgimath, S.P. (author)
This thesis presents a high gain, low noise and low power dynamic residue amplifier and a low power, low noise dynamic comparator designed in TSMC 28nm process for a two step Pipelined SAR-ADC. The cascoded integrator dynamic residue amplifier (CIDRA) achieves a gain of 30dB with THD of 47dB (11 mV pp input). The input referred noise across tem-...
master thesis 2012
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Wezel, J. (author)
The radio frequent (RF) safety of dental retainer wires during Magnetic Resonance Imaging at 7 tesla has been investigated using electromagnetic simulations and thermal measurements on a phantom model. In the Netherlands up to 40% of the younger adults have such a dental retainer wire, which at the moment is listed as a contraindication for 7 T...
master thesis 2012
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Dyachenko, V.A. (author)
In this work a low power SAR ADC with 8.9 ENOB for wireless communication systems is presented. A capacitive charge redistribution DAC with a unit capacitor of 0.5fF is used. The implemented charge-sharing technique, allows the use of 2^(N-1) + 1 unit capacitors, instead of the conventional 2^N , thus decreasing the DAC area and the DAC...
master thesis 2012
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Tziouvara, I. (author)
In this thesis, a projector-based Spatial Augmented Reality (SAR) system designed and developed to be applied to support physical and virtual 3D Rapid Prototyping in the field of Industrial Design Engineering is presented. The main contribution is a 3D scanner to get a virtual model of a physical model and tools to support the design of features...
master thesis 2012
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Eilander, D.M. (author)
A new semi-supervised `growing' Bayesian classifier for small reservoir delineation has been developed and is tested with Radarsat-2 data for reservoirs in the semi-arid Upper East Region of Ghana. The classifier reduces the confusion error to the land-water boundary pixels, can readily be extended with auxiliary information and has a high...
master thesis 2013
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Elumalai, I. (author)
Voltage reference buffers have always been the most power-hungry blocks in switched-capacitor SAR ADCs. High frequency dynamic loading of the buffer by the capacitive DAC causes glitches on the reference voltage, and the buffer has to be fast enough to recover such transients to 1/2 LSB precision in every bit cycle. Such stringent requirements...
master thesis 2013
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Van Oostveen, J.G. (author)
During 1997-2000 Dyngjujökull, one of the major outlet glaciers of the main Icelandic ice cap Vatnajökull, surged. This event was captured by ERS 1 and 2 satellites flying in tandem mode, enabling the use of InSAR to monitor the motion of the glacier. Since a major limitation of InSAR is its sensitivity to deformation in only one dimension, the...
master thesis 2014
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Liem, V.C.G. (author)
The Black Desert in the east of Jordan has recently gained attention in the archaeological domain due to the discovery of pre-historical structures and a vast amount of rockart depictions. The Department of Near Eastern Archaeology of the University of Leiden has started investigating the cultural developments within this area from c. 1000 BC to...
master thesis 2014
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Montazeri, S. (author)
For decades, spaceborne Synthetic Aperture Radar (SAR) interferometry has evolved into a widely used geodetic method for three-dimensional mapping and analysing the geophysical processes of the surface of the earth. Nevertheless, effects such as atmospheric disturbances, temporal and geometric decorrelation are considered as the main degrading...
master thesis 2014
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Pinitas, G. (author)
master thesis 2014
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Wesselink, D.S. (author)
Avalanches form a threat to people travelling in mountainous regions as well as for infrastructure and buildings. They cause around 250 fatalities annually worldwide. To limit the number of future fatalities, forecasting services are interested in knowledge on avalanche activity to verify their warning system. They rely on information about the...
master thesis 2015
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Zhang, R. (author)
This thesis presents a 1-Mega pixels high-dynamic range and UV sensitive image sensor in 0.18 µm technology with 14-bit interleaved 64Ms/s SAR ADC. It can achieve 64 fps and 101 dB dynamic range. The pixel array contains three kinds of pixel: UV pixel, visible pixel and low blue pixel. Those three kinds of pixel form a special 4×4 kernel to meet...
master thesis 2015
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Hu, W. (author)
In this work a 9-bit, 33MHz hybrid SAR single-slope ADC for element-level digitization in 2D ultrasound transducer arrays is presented. This hybrid architecture consists of a 5-bit SAR ADC followed by a 4-bit single-slope ADC. In the comparator design, the dynamic comparator and the continuous-time comparator for the SAR and single-slope...
master thesis 2015
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Schulz, A. (author)
The sea level determination in the Arctic brings challenges with it, due to its high seasonality, varying surface types and scarce in-situ observations. By developing a year round retracker system with an implementation of a bias removal strategy, the Arctic sea level determination is improved. Through the analysis of the seasonal performance of...
master thesis 2016
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Oost, R. (author)
Observations show that the Greenland ice sheet is losing mass with accelerating pace. Ice discharge trough outlet glaciers contributes approximately for half of the mass loss. However, the role of marine-terminating outlet glaciers on the response of the Greenland ice sheet to climate change is relatively unknown. In recent years, observations...
master thesis 2016
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Ursulean, M. (author)
The thesis analyzes the design challenges that arise when developing high-speed ADCs and shows, through an extensive architecture study, that the SAR topology can be used with a sampling rate of 2.5GS/s if asynchronous processing and a multi-bit per cycle approach are adopted. The transistor-level implementation and simulation of a 6-bit SAR ADC...
master thesis 2016
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Wieffering, Tristan (author), Arriëns, Roy (author)
A system has been developed that utilises the techniques of Ultra Wideband and Synthetic Aperture Radar to produce top view images of a scene using measurements from the side. The system consists of the PulsON P410 radar module, a set of antennas, a moving platform and an imaging algorithm. This thesis will cover all the aspects of the data...
bachelor thesis 2017
Searched for: subject%3A%22SAR%22
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