Browsing Institutt for elektroniske systemer by Title
Now showing items 629-648 of 2289
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Digitalization of colourimetric sensor arrays for volatile fatty acid detection in anaerobic digestion
(Journal article; Peer reviewed, 2019)During the process of converting the organic matter into methane, many volatile fatty acids (VFAs) are produced during acidogenesis and acetogenesis phases of the process. The main VFAs of interest are acetic acid, butyric ... -
Digitalization of Sustainable Energy Production Processes
(Master thesis, 2021)Biogas production is growing as a renewable energy source. In order to maximize energy production, it is essential to ensure that the production process is economical and efficient. This report discusses the anaerobic ... -
Digitalt filter
(Bachelor thesis, 2001)Oppgaven går i hovedsak ut på å simulere og vurdere ulike filterstrukturer for en DVB prosessor, og komme med en konklusjon på den best egnede strukturen.Utviklingsverktøyet QuartusII skal i tillegg testes for å se om ... -
Dino – Plattform for forenklet FPGA-design
(Master thesis, 2019)Det kan være en stor utfordring å designe digital maskinvare til programmerbare logiske kretser(FPGA). Jo mindre erfaring man innehar, desto mer utfordrende er det. For å kunne utvikle på en FPGA er man avhengig av et ... -
Direct Growth of AlGaN Nanorod LEDs on Graphene-Covered Si
(Journal article; Peer reviewed, 2018)High density of defects and stress owing to the lattice and thermal mismatch between nitride materials and heterogeneous substrates have always been important problems and limit the development of nitride materials. In ... -
Direct imaging of long-range ferromagnetic and antiferromagnetic order in a dipolar metamaterial
(Journal article, 2020)Magnetic metamaterials such as artificial spin ice offer a route to tailor magnetic properties. Such materials can be fabricated by lithographically defining arrays of nanoscale magnetic islands. The magnetostatic interactions ... -
Direct observation of temperature dependent vortex dynamics in a La0.7Sr0.3MnO3 micromagnet
(Peer reviewed; Journal article, 2020)Although it is well documented that the vortex core in a micromagnet can switch polarization in response to magnetic field pulses, the temperature dependence of this process has not yet been addressed by experiments. Using ... -
Directional sound for video conferencing systems: A pragmatic approach to sound field reproduction
(Master thesis, 2009)The summary will be put here later on... -
Directive under-water transducer design for Doppler velocity log
(Master thesis, 2019)En 1 MHz direktiv undervannstransduser for bruk i DVL er designet, simulert, konstruert og testet gjennom målinger i denne oppgaven. Designet følger teorien for en piezoelektrisk disk som opererer i tykkelsesmodi, omsluttet ... -
Direktive transdusere for undervanns sensornettverk
(Master thesis, 2015)I denne rapporten har det blitt gjort simuleringer av direktivitetsfunksjonene ved ulike designer og geometrier av svingere, i tillegg til et forsøk i en vanntank med to diskformede svingere plassert vinkelrett på hverandre. ... -
Distribuert lydnivåmåling: Trådløs dosimetri
(Master thesis, 2011)Det finnes flere gode måter for personer å forebygge og motvirke hørselskader på. En av disse metodene er ved å måle lyddosen en person blir utsatt for. Denne metoden er grunnlaget for dette prosjektet. Prosjektet Distribuert ... -
Distributed acoustic acquisition with low-cost embedded systems
(Master thesis, 2020)Under visse omstendigheter er akustiske målinger bemerkelsesverdig utfordrende fordi det ikke finnes en praktisk måte for et målesystem å utføre reproduksjon og anskaffelse samtidig (for eksempel når du måler overføringstapet ... -
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 acoustic sensing for near-surface imaging using submarine telecommunication cable: A case study in the Trondheimsfjord, Norway
(Journal article; Peer reviewed, 2021) -
Distributed acoustic sensing of ocean-bottom seismo-acoustics and distant storms: A case study from Svalbard, Norway
(Peer reviewed; Journal article, 2023)Distributed acoustic sensing (DAS) leverages an ocean-bottom telecommunication fiber-optic cable into a densely sampled array of strain sensors. We demonstrate DAS applications to passive acoustic monitoring (PAM) through ... -
Distributed adaptive filtering of alpha-stable signals
(Journal article; Peer reviewed, 2018)A cost-effective framework for distributed adaptive filtering of α-stable signals over sensor networks is proposed. First, the filtering paradigm of α-stable signals through multiple observations made over a network of ... -
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 Detection in Wireless Sensor Networks under Multiplicative Fading via Generalized Score-tests
(Peer reviewed; Journal article, 2021)In this paper, we address the problem of distributed detection of a non-cooperative (unknown emitted signal) target with a Wireless Sensor Network (WSN). When the target is present, sensors observe an (unknown) deterministic ... -
Distributed interference and data buffer management for cognitive radio
(Master thesis, 2010)Future wireless communications are focused on develop new paradigms of spectrum reuse, i.e. cognitive radio, where radio frequencies can be taken into used if no other use is detected. In this way, these systems need ... -
Distributed Kalman filtering and control through embedded average consensus information fusion
(Journal article; Peer reviewed, 2019)This paper presents a unified framework for distributed filtering and control of state-space processes. To this end, a distributed Kalman filtering algorithm is developed via decomposition of the optimal centralized Kalman ...