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Dynamic Bias for RF Class A Power Amplifiers
(Master thesis, 2009)This thesis focuses on class A radio frequency power amplifiers in dynamic supply modulation architectures (dynamic bias). These are promising efficiency enhancement techniques where the device is driven harder by varying ... -
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 ... -
Dynamic Gate Controlled Power Amplifier Design Based on GaN Technology.
(Master thesis, 2015)In this thesis, a harmonic tuned amplifier has been designed and manufactured to investigate if Dynamic Gate Control can be utilized to obtain greater linearity properties. The design process has been conducted with the ... -
Dynamic Graph Topology Learning with Non-Convex Penalties
(Chapter, 2022)This paper presents a majorization-minimization-based framework for learning time-varying graphs from spatial-temporal measurements with non-convex penalties. The proposed approach infers time-varying graphs by using the ... -
A dynamic lithosphere–asthenosphere boundary near the equatorial Mid-Atlantic Ridge
(Peer reviewed; Journal article, 2021)In plate tectonic theory a weak asthenosphere is required to facilitate the motions of the rigid plates. Partial melt could weaken the mantle, in turn impacting convection, but to date the existence of persistent melt has ... -
Dynamic Spectrum Management in DSL Systems
(Master thesis, 2007)The candidate shall study different methods for dynamic spectral management in DSL systems, with main emphasis on autonomeous methods like iterative waterfilling. The methods shall be implemented in Matlab. -
Dynamic Systems Approach in Sensorimotor Synchronization: Adaptation to Tempo Step-Change
(Peer reviewed; Journal article, 2021)This paper presents a dynamic systems model of a sensorimotor synchronization (SMS) task. An SMS task typically gives temporally discrete human responses to some temporally discrete stimuli. Here, a dynamic systems modeling ... -
Dynamikkompresjon av høydynamiske bilder i hardware: Implementasjon av Reinhars Fotoreseptormodell
(Master thesis, 2007)Dagens bildestandarder har 8-bit oppløsning per farge, noe som er lite i forhold til reelle scener man observerer i hverdagen. Det blir stadig sterkere fokus på høydynamisk bildeteknologi, og overgangen fra lavdynamisk til ... -
Dynamisk rekonfigurerbart digitalt filter
(Master thesis, 2009)Denne masteroppgaven er et arbeid mot et system med et dynamisk rekonfigurerbart digitalt FIR-filter på FPGA. Filteret benytter konstantmultiplikatorer optimalisert med CSD-kode for lite areal og kort rekongureringstid ... -
Dynamisk simuleringsrammeverk for undervanns-kontrollenheter
(Bachelor thesis, 2022)Abstract will be available on 2025-05-20 -
Dype Nevronett for Talegjenkjenning
(Master thesis, 2015)I dette arbeidet tester vi ytelsen til et fonemgjenkjenningssystem, basert på skjulte markovmodeller, på den norske taledatabasen NAFTA. De skjulte markovmodellenes aposteriori sannsynligheter blir trent ved hjelp av et ... -
Eavesdropping at the Speed of Light: Distributed Acoustic Sensing of Baleen Whales in the Arctic
(Peer reviewed; Journal article, 2022)In a post-industrial whaling world, flagship and charismatic baleen whale species are indicators of the health of our oceans. However, traditional monitoring methods provide spatially and temporally undersampled data to ... -
ECG augmented pulse oximetry in Atlantic salmon (Salmo salar)—A pilot study
(Peer reviewed; Journal article, 2023)Understanding the tolerance limits of fish is crucial for developing aquaculture operations that ensure good animal welfare. However, there exist little data describing the physiological responses in farmed Atlantic salmon, ... -
Edge Diffraction Implementation by Semi-Transparent Surfaces in Geometrical Room Acoustics
(Master thesis, 2011)This report presents a potential method to efficiently implement edge diffraction from a noise barrier into geometrical room acoustic softwares. The modelling is based on semi-transparent surfaces, and the classic digital ... -
EEG-based Brain Computer Interface for Controlling a Drone - using machine learning, optimized for a battery powered device
(Master thesis, 2018)Brain Computer Interfaces enable the use of brain waves to control computer-based external devices. It can, however, be difficult to trigger a specific brain wave, and it might not be repetitive enough to be used in such ... -
Effecient Hardware for Principal Component Analysis of hyperspectral images
(Master thesis, 2023)Dette emnet er en del av prosjektet Hyperspectral Imaging in Small Satellites. Grunnet den høye dimensjonaliteten til innsamlede data, har algoritmer som analyserer hyperspektrale bilder høye kostnader. De fleste algoritmer ... -
Effect of (111)-oriented strain on the structure and magnetic properties of La2/3Sr1/3MnO3 thin films
(Journal article; Peer reviewed, 2018)Using strain, i.e. subtle changes in lattice constant in a thin film induced by the underlying substrate, opens up intriguing new ways to control material properties. We present a study of the effects of strain on structural ... -
Effect of polar (111)-oriented SrTiO3 on initial perovskite growth
(Journal article, 2016)In crystalline thin film growth a prerequisite is substrate surfaces with a stable and uniform structure and chemical composition. Various substrate treatments were used to obtain atomically smooth, step-and-terrace ... -
Effect of power ultrasound and Fenton reagents on the biomethane potential from steam-exploded birchwood
(Journal article; Peer reviewed, 2019)The global demand for non-fossil energy sources is increasing rapidly. As a result, biogas presents a suitable alternative; however, first generation biofuels (e.g., sugar cane) potentially impact food crops globally. ...