Blar i Institutt for elektroniske systemer på dokumenttype "Doctoral thesis"
Viser treff 41-60 av 196
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Detection and analysis of liquid-solid phase transitions with fiber-optic sensors
(Doctoral theses at NTNU;2020:163, Doctoral thesis, 2020)Fiber-optic sensors offer unique benefits within the field of experimental thermodynamics due to their small size and inert all-fiber design. Interrogation of the reflected signal enables insertion probes able to monitor ... -
Detection of localised corrosion in pipes using guided waves
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:76, Doctoral thesis, 2012)The work in this thesis is motivated by a need to improve non- destructive testing (NDT) techniques as petrochemical production moves towards harsher environments, with increasing presence of CO2 and/or H2S in the production ... -
Detection of Vulnerable Atherosclerotic Plaque
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:23, Doctoral thesis, 2007)Heart attacks are the cause for the majority of deaths in the industrialized world. The underlying cause of most of these deaths is the rupture of vulnerable plaque. As of this day, no widely accepted clinical tool exists ... -
Development and Testing of an Acoustic Plankton Recorder
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:46, Doctoral thesis, 2007)Recent years have brought cross-disciplinary focus on possibilities, constraints and consequences of large scale zooplankton harvesting. Development of acoustic measurement technology is an important part of that work. ... -
Development of speckle reduction technology in laser projection displays
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:52, Doctoral thesis, 2013)Lasers as illumination sources in displays have excellent features compared to lamps and Light Emitting Diodes (LEDs). Lasers have the following advantages: high luminance, small etendue, long lifetime, linear polarization, ... -
Development of tunable Y-junction laser diodes for trace-gas sensing applications
(Doctoral theses at NTNU;2023:422, Doctoral thesis, 2023)Y-junction laser diodes are promising light sources needed for trace-gas sensing systems based on tunable diode-laser absorption spectroscopy. The merit of this laser structure is the fabrication simplicity and the ability ... -
Digital-to-Analog Conversion in High Resolution Audio
(Doctoral Theses at NTNU, 1503-8181, Doctoral thesis, 2008) This thesis describes theoretical and simulation-based work on digital-to-analog conversion for high resolution audio. The emphasis of the work has been exploration and clarification of issues of contention in ... -
Distributed acoustic sensing and 4D seismic time-strain inversion for subsurface monitoring
(Doctoral theses at NTNU;2023:280, Doctoral thesis, 2023)Subsurface monitoring plays an important role in utilising subsurface resources and preventing geologic hazards. This thesis comprises dissemination of the research in using seismic methods for subsurface monitoring. Here ... -
Distributed Detection and Localization
(Doctoral theses at NTNU;2024:84, Doctoral thesis, 2024)This thesis delves into the detection and localization aspects of distributed Wireless Sensor Networks (WSNs). Specifically, the research concentrates on WSNs in which sensors autonomously carry out detection tasks and ... -
Distributed Learning and Estimation with Enhanced Privacy and Security
(Doctoral theses at NTNU;2023:59, Doctoral thesis, 2023)This thesis focuses on threat analysis and management in distributed learning scenarios intending to develop algorithms to mitigate the impact of adversaries in the network. The thesis begins with a threat analysis that ... -
Dynamic biasing for linear power amplifier efficiency enhancement
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:277, Doctoral thesis, 2012)Spectrum is an indispensable and scarce resource in modern communication systems. Reduced hardware complexity is therefore traded for bandwidth-efficient modulation that increases the signal’s peak-to-average power ratio ... -
Dynamic Channel Models for Wireless Body Area Networks
(Doctoral theses at NTNU;2018:240, Doctoral thesis, 2018)The advancements in technology have made it possible to create a network of implant and wearable nodes around the human body known as wireless body area network (WBAN). These communication systems have potentially great ... -
Efficient ADCs for nano-scaleCMOS Technology
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:292, Doctoral thesis, 2008) -
Efficient Low-Complexity MPEG-2 to H.264/AVC Video Transcoding System Architectures and Optimization Techniques Susceptible to Dynamic Partial Reconfiguration
(Doctoral thesis at NTNU;2015:107, Doctoral thesis, 2015)The variety of available coding standards introduces the need for efficient transcoding techniques. Transcoding between MPEG-2 and H.264/AVC is of particular interest due to the wide use of MPEG-2 in TV broadcasting and ... -
Efficient Space Domaine Method of Moments for Large Arbitrary Scatterers in Planar Stratified Media
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:100, Doctoral thesis, 2004)Keywords : Conjugate gradient fast Fourier transform (CG-FFT), Discrete complex image method (DCIM), Electric field integral equation (EFIE), Frequency selective surfaces (FSS), Generalized pencil-of-functions (GPOF), ... -
Electrooptical modeling of semiconductor nanowires
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:99, Doctoral thesis, 2013) -
Energy Efficient Subthreshold Digital Building Blocks
(Doctoral theses at NTNU;2022:141, Doctoral thesis, 2022)Many IoT applications such as implantable biomedical devices, sensor nodes in the internet of things operate in the kHz range, and power consumption is the primary concern in such applications. However, the required voltage ... -
Enhancing Quality Aspects of Adaptive Video Streamingin Home Networks
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:13, Doctoral thesis, 2014)The growth of broadband Internet access across the world for the last 10 years has made new business models possible. Services which before mainly were provided by network operators and in dedicated networks have now ... -
Epitaxial Growth of Self-Catalyzed GaAs Nanowires by Molecular Beam Epitaxy
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:166, Doctoral thesis, 2014)This thesis deals with the growth of GaAs nanowires (NWs) by molecular beam epitaxy (MBE) using vapor-liquid-solid method on various substrates including GaAs(111)B, Si(111) and graphene. The growth of the NWs on GaAs ... -
Estimation over MIMO Fading Channels: Outage and Diversity Analysis
(Doctoral thesis at NTNU;2016:124, Doctoral thesis, 2016)In this thesis, estimation of signals over fading channels for analog uncoded transmission is considered. In communication settings with tight delay requirements, e.g. in real-time control over wireless fading channels ...