Browsing Institutt for elektroniske systemer by Title
Now showing items 1475-1494 of 2302
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Objective Image Quality Metrics for Ultrasound Imaging
(Master thesis, 2009)Objective evaluation of the image quality on ultrasound images is a comprehensive task due to the relatively low image quality compared to other imaging techniques. It is desirable to objectively determine the quality of ... -
Objekt identifisering
(Bachelor thesis, 2008)ETC har et system for administrasjon av bilparker som bl.a. benytter seg av elektronisk styrte nøkkelskap. Disse skapene har ingen måte å kontrollere om det er en nøkkel tilstede i et gitt nøkkelrom. Vi skal undersøke ... -
Objektiv og sansningsbasert vurdering av vindturbinstøy
(Master thesis, 2020)De fleste land benytter i dag regelverk for regulering av støyplage fra vindturbiner som er basert på lydtrykknivå, mens noen land bruker differensielle støygrenser som lydfremvekst. I denne sammenhengen har det blitt ... -
Octahedral coupling in (111)- and (001)-oriented La0.7Sr0.3MnO3/SrTiO3 heterostructures
(Journal article; Peer reviewed, 2018)Rotations and distortions of oxygen octahedra in perovskites play a key role in determining their functional properties. Here, we investigate how octahedral rotations can couple from one material to another in La2/3Sr1/3 ... -
Om implementering av frekvenshopping i OpenBTS.
(Master thesis, 2011)Denne Rapporten gir en forklaring på hva programvaredefinert radio er generelt. Den omtaler en konkret realisering ved hjelp av programvaren GNU Radio og den universale radioenheten USRP (Universal Software Radio Peripheral). ... -
On Bit Error Probability and Power Optimization in Multihop Millimeter Wave Relay Systems
(Journal article; Peer reviewed, 2018)5G networks are expected to provide gigabit data rate to users via the millimeter-wave (mmWave) communication technology. One of the major problems faced by mmWaves is that they cannot penetrate buildings. In this paper, ... -
On Enabling Scalable, Personalized, and Private Federated Learning
(Doctoral theses at NTNU;2024:92, Doctoral thesis, 2024)This thesis investigates distributed machine learning for emerging Internet of Things (IoT) and Cyber-Physical Systems (CPS) applications. These applications involve large-scale data collection from distributed, often ... -
On Improving Recovery Performance in Multiple Measurement Vector Having Dependency
(Journal article; Peer reviewed, 2019)The multiple measurement vector (MMV) problem is applicable in a wide range of applications such as photoplethysmography (PPG), remote PPG measurement, heart rate estimation, and directional arrival estimation of multiple ... -
On Localization and Tracking for Wireless Capsule Endoscopy
(Doctoral Theses at NTNU, 1503-8181; 2013:156, Doctoral thesis, 2013)Capsule endoscopy is a new and painless technique which has revolutionizedthe gastrointestinal imaging. However, one of the main shortcomingsof the new method is its inability to tag a precise location to each image. Inthis ... -
On low frequencies emitted by air guns at very shallow depths - An experimental study
(Journal article; Peer reviewed, 2019)In marine seismic acquisition, the enhancement of frequency amplitudes below 5 Hz is of special interest because it improves imaging of the subsurface. The frequency content of the air gun, the most commonly used marine ... -
On Low Power, Analog Modules for Medical Ultrasound Imaging Systems
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:10, Doctoral thesis, 2010) -
On Low-Complexity Implementation of Nonlinear Vector Precoding for Multi-Antenna Systems
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:112, Doctoral thesis, 2011)Wireless communication systems using multiple antennas at a transmitter, and many receivers, such as multiple-input multipleoutput (MIMO) broadcast systems, admit an application of a joint signal processing at the transmitter ... -
On Mathematical Analysis of Active Drug Transport Coupled with Flow-induced Diffusion in Blood Vessels
(Peer reviewed; Journal article, 2021)Blood vessels are flow-induced diffusive molecular channels equipped with transport mechanisms across their walls for conveying substances between the organs in the body. Mathematical modeling of the blood vessel as a ... -
On Multiple Domain Basis Functions and Their Application to Wire Radiators
(Doctoral Theses at NTNU, 1503-8181; 2010:102, Doctoral thesis, 2010)The Method of Moments (MoM) is a general method for solving linear problems, including electromagnetic problems, such as radiation and scattering of electromagnetic waves. The applications of the method include analysis ... -
On Narrowband Interference Mitigation Methods for Robust Wireless Sensor Networks
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:83, Doctoral thesis, 2013)In this dissertation different approaches to robustness in ultra wideband (UWB) wireless sensor networks, specifically biomedical applications, are studied. UWB wireless sensor networks are unlicensed users of the frequency ... -
On Path Length Estimation for Wireless Capsule Endoscopy
(Chapter, 2018)Wireless capsule endoscopy (WCE) is a non-invasive technology used for inspection of the gastrointestinal tract. Localization of the capsule is a vital part of the system enabling physicians to identify the position of ... -
On Power Consumption Issues in FIR Filters with Application to Communication Receivers:Complexity, Word length,and Switching Activity
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:201, Doctoral thesis, 2009)Power consumption in CMOS VLSI circuits has in recent years become a major design constraint. This is in particular important for wireless networks, due to the limited life time of the batteries that wireless nodes are ... -
On Predicting Sensor Readings With Sequence Modeling and Reinforcement Learning for Energy-Efficient IoT Applications
(Peer reviewed; Journal article, 2021)Prediction of sensor readings in event-based Internet-of-Things (IoT) applications is considered. A new approach is proposed, which allows turning off sensors in periods when their readings can be predicted, thus preserving ... -
On Signal Recovery: Independent Component Analysis for Multiple Measurement Vectors and Source Separation
(Doctoral theses at NTNU;2018:381, Doctoral thesis, 2018)In many applications such as natural sciences, medicine or imaging, some hidden features are to be extracted using some measurements. This arises inverse problem where the cause required to be obtained using the measurement. ... -
On Stability and Convergence of Distributed Filters
(Peer reviewed; Journal article, 2021)Recent years have bore witness to the proliferation of distributed filtering techniques, where a collection of agents communicating over an ad-hoc network aim to collaboratively estimate and track the state of a system. ...