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Fractional-order correntropy adaptive filters for distributed processing of alpha-stable signals
(Peer reviewed; Journal article, 2020)This work revisits the problem of distributed adaptive filtering in multi-agent sensor networks. In contrast to classical approaches, the formulation relaxes the Gaussian assumption on the signal and noise to the generalized ... -
Fractional-Order Correntropy Adaptive Filters for Distributed Processing of α -Stable Signals
(Journal article; Peer reviewed, 2020)This work revisits the problem of distributed adaptive filtering in multi-agent sensor networks. In contrast to classical approaches, the formulation relaxes the Gaussian assumption on the signal and noise to the generalized ... -
Fractional-order correntropy filters for tracking dynamic systems in alpha-stable environments
(Peer reviewed; Journal article, 2020)In an increasing number of modern filtering applications, the encountered signals consist of frequent sharp spikes, that cannot be accurately modeled using Gaussian random processes. Modeling the behavior of such signals ... -
Fragmentation, Centralisation and Policy Learning: An Example from China’s Wind Industry
(Journal article; Peer reviewed, 2014)This paper seeks to understand what government mechanisms have allowed China’s wind industry to grow as fast as it has over the past ten years. Instead of formal rules and regulations, this paper focuses on specific ... -
Fraktalantenner: 868/915MHz Kretskortantenner for kortholdskommunikasjon
(Master thesis, 2006)Fraktale strukturer er en måte å lage antenner med interessante egenskaper, det kan være minityrisering av antenner eller multi/bred-båndsantenner. I masteroppgaven er Hilbertfraktalen brukt til å lage en miniatyrisert ... -
Framework for self reconfigurable system on a Xilinx FPGA.
(Master thesis, 2009)Partial self reconfigurable hardware has not yet become main stream, even though the technology is available. Currently FPGA manufacturer like Xilinx has FPGA devices that can do partial self reconfiguration. These and ... -
Free-Space Optical Communication: From Space to Ground and Ocean
(Peer reviewed; Journal article, 2021)During the last decade, there has been a rapid advancement in the area of mobile broadband and wireless communication. The demand for higher data rate and capacity has continuously increased thanks to the growing need for ... -
Free-standing tantalum pentoxide waveguides for gas sensing in the mid-infrared
(Peer reviewed; Journal article, 2021)Typical applications of integrated photonics in the mid-infrared (MIR) are different from near-infrared (telecom) range and, in many instances, they involve chemical sensing through MIR spectroscopy. Such applications ... -
Freely-Drifting Small-Satellite Swarms for Sensor Networks in the Arctic
(Chapter, 2018)Satellite communications have been widely used to provide connectivity around the world. However, regions such as the Arctic still have limited coverage, despite the need to monitor this region. Currently, several sensors ... -
Frekvenskonvertering ved hjelp av punktprøvingsteknikker: En alternativ metode for å flytte bredbåndede RF-signaler opp og ned i frekvens
(Master thesis, 2011)Mange av dagens trådløse systemer benytter frekvenser opp i titals gigahertz området,ofte kalt RF-bånd, til å sende bredbåndede RF-signaler. Siden den digitale enheten somprosesserer RF-signalene opererer på et lavere ... -
Frequency Dependence of Microwave-assisted Electron-transfer Chemical Reactions
(Journal article; Peer reviewed, 2019)In this paper, the electron transfer reactions in the microwave field are studied. A classical theory is developed for a mix of reagents and polar frequency-dispersive and lossy solvent filling vessels excited by microwaves. ... -
Frequency Response of Reflector Arrays
(Master thesis, 2008)This report will investigate the frequency response of reflector arrays. Reflector arrays have two independent cut-off frequencies. One is caused by diffraction from the whole array, another is caused by diffraction from ... -
Frequency-depth-dependent spherical reflection response from the sea surface - a transmission experiment
(Journal article; Peer reviewed, 2018)In academia and the industry, there is an increasing interest in generating and recording low seismic frequencies, which lead to better data quality, deeper signal penetration and can be important for full-waveform inversion. ... -
Full-Custom Sub-/Near-Threshold Cell Library in 130nm CMOS with Application to an ALU
(Master thesis, 2014)This thesis presents a cell library with limited functionality targeting to operate in sub-threshold (350mV) as well as above-threshold (1.2V) voltages utilizing the dynamic speed requirement of the circuit. The sub-threshold ... -
Full-field implementation of a perfect eavesdropper on a quantum cryptography system
(Journal article; Peer reviewed, 2011)Quantum key distribution (QKD) allows two remote parties to grow a shared secret key. Its security is founded on the principles of quantum mechanics, but in reality it significantly relies on the physical implementation. ... -
Full-waveform inversion studies
(Master thesis, 2008)In this master thesis, full-waveform inversion (FWI) was applied to a synthetic, and very complex, geological structure containing a salt body. The main objective was to evaluate the capabilities of FWI to estimate velocities ... -
Fully integrated voltage-controlled LC-oscillators for direct-conversion radio-on-a-chip applications in CMOS technology
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:10, Doctoral thesis, 2005)The development of a 3G/GSM dual-system Radio-On-a-Chip for mobile handsets in CMOS technology depends on the GSM transmitter’s compliance with the receive-band noise mandated by the standard. An integrated direct conversion ... -
GaAs/AlGaAs Nanowire Array Solar Cell Grown on Si with Ultrahigh Power-per-Weight Ratio
(Peer reviewed; Journal article, 2021)Here we demonstrate a more effective use of III–V photoconversion material to achieve an ultrahigh power-per-weight ratio from a solar cell utilizing an axial p-i-n junction GaAs/AlGaAs nanowire (NW) array grown by molecular ... -
Galvanic Impulse Wireless Communication for Biomedical Implants
(Peer reviewed; Journal article, 2021)Wireless intra-body communication is a promising approach for providing efficient and secure connectivity for medical implants. The low power consumption of the electronics and the conductivity of the biological tissues ... -
GaN/AlGaN nanocolumn ultraviolet light-emitting diode using double-Layer graphene as substrate and transparent electrode
(Journal article, 2019)The many outstanding properties of graphene have impressed and intrigued scientists for the last few decades. Its transparency to light of all wavelengths combined with a low sheet resistance makes it a promising electrode ...