Browsing Institutt for elektroniske systemer by Issue Date
Now showing items 61-80 of 2290
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On the Efficiency of Data Communication for the Ultramonit Corrosion Monitoring System
(Master thesis, 2006)Ultramonit is a system under development for permanent installation on critical parts of the subsea oil- and gas pipelines in order to monitor the corrosion continuously by using ultrasound. The communication link which ... -
Evaluation of SDR-implementation of IEEE 802.15.4 Physical Layer
(Master thesis, 2006)The concept of software-defined radio (SDR) holds great promise. The idea behind SDR is to move software as close to the antenna as possible. This can improve flexibility, adaptability and reduce the time-to-market. This ... -
Adaptive Frequency Hopping with Channel Prediction
(Master thesis, 2006)The number of radio systems operating in the 2.4 GHz band is rising as a result of increased usage of wireless technologies. Since such devices interfere with one another, satisfactory co-existence becomes important. Several ... -
5.8 GHz VCO
(Master thesis, 2006)The explosive growth in wireless communications has led to an increased demand for wireless products that are low-cost, low-power and compact. One approach to meet these demands is the system-on-a-chip (SoC) integration, ... -
On the Efficiency of Data Communication for the Ultramonit Corrosion Monitoring System
(Master thesis, 2006)Ultramonit is a system under development for permanent installation on critical parts of the subsea oil- and gas pipelines in order to monitor the corrosion continuously by using ultrasound. The communication link which ... -
Antiferromagnetic Domain Contrast in LaFeO3 Thin Films: Examined with X-ray Magnetic Linear Dichroism and Photo Electron Emission Microscopy
(Master thesis, 2006)This study will focus on strain induced by thermal history and thickness on antiferromagnetic epitaxial LaFeO3(110) thin films grown on Nb:SrTiO3(001) substrates. Lattice mismatching between film and substrate induce strain ... -
En MPEG-21 basert løsning for Filmweb som en 3G-tjeneste
(Master thesis, 2006)Denne diplomoppgaven beskriver videreutviklingen av konseptet filmweb.no til å bli en 3G-tjeneste basert på ISO-/IEC-standarden MPEG-21. Filmweb.no er en internettjeneste som informerer om kinotilbudet og gjør det enklere ... -
Analyse, dekomponering og rekonstruksjon av FPGA-konfigurasjoner for AHEAD: Ambient Hardware, Embedded Architectures on Demand
(Master thesis, 2006)Utvikling av maskinvare for (re)programmerbar mikroelektronikk har tradisjonelt vært basert på bruk av proprietære DAK-verktøy på alle abstraksjonsnivå. Den tradisjonelle designflyten forutsetter at alle utviklingsaktivitetene ... -
Bildetransmisjon basert på 2D-nedsampling og shannonavbildninger
(Master thesis, 2006)I følge rate-distorsjonsteorien skal de deler av et signalspektra som faller under støynivået ikke overføres. Dersom signalspekteret er monotont avtakende, kan signalet i slike tilfeller lavpassfiltreres og nedsamples. I ... -
Processing Core for Compressing Wireless Data - The Enhancement of a RISC Microprocessor
(Master thesis, 2006)This thesis explores the ability of the proprietary Texas Instruments embedded 16 bits RISC microprocessor, NanoRisc, to process common lossless compression algorithms, and propose extensions in order to increase its ... -
Dupleksfilter for militære radiolinjer
(Master thesis, 2006)Radiolinjene som benyttes til militære formål består blant annet av et dupleksfilter. Filteret slipper gjennom ønsket signal. Det benyttes i dag et stort og tungt mekanisk justerbart hulromresonatorfilter. Et ønske om å ... -
Migration from 8 to 32 bit microcontroller
(Master thesis, 2006)This report presents the master thesis on migrating embedded systems from 8 to 32 bit CPU.It accounts for the study of different CPU architectures, their properties and use, with an emphasize on differences presented to ... -
Tuneable Diode Laser Absorption Spectroscopy with Optical Fiber: Noise Analysis and Noise Reduction
(Master thesis, 2006)A prototype of a fiber based absorptionspectroscopy instrument is built. A single mode fiber pigtailDistributed Feedback laser (DFB) is used to scan a known$mbox{NH}_3$ absorption line near $1512nm$ ($6614cm^{-1}$). ... -
Realisering av high-end delta-sigma DAC i FPGA
(Master thesis, 2006)Oppgaven har gått ut på å lage en high-end delta-sigma DA-konverter for FPGA. Prinsippet for en slik DA-konverter er at det analoge utgangssignalet genereres ved å lavpassfiltrere et 1-bit digitalt utgangssignal fra ... -
Adaptive Frequency Hopping with Channel Prediction
(Master thesis, 2006)The number of radio systems operating in the 2.4 GHz band is rising as a result of increased usage of wireless technologies. Since such devices interfere with one another, satisfactory co-existence becomes important. Several ... -
Processing Core for Compressing Wireless Data: The Enhancement of a RISC Microprocessor
(Master thesis, 2006)This thesis explores the ability of the proprietary Texas Instruments embedded 16 bits RISC microprocessor, NanoRisc, to process common lossless compression algorithms, and propose extensions in order to increase its ... -
Energihøsting i Strømning
(Master thesis, 2006)I denne oppgaven skal det lages det en energihøster som skal kunne høste energi fra en luftstrømning. Det skal benyttes piezoelektrisk PVDF-film for å høste energi fra strømningen. Innledningsvis studeres tidligere arbeid ... -
Tilstandsanalyse av separator
(Master thesis, 2006)Separatorer er sentrale elementer i olje- og gassproduksjon. De er også gjenstand for betydelige driftsproblemer, og dagens metoder for tilstandsovervåkning fungerer ikke tilfredsstillende. Akustisk tilstandsovervåkning ... -
System for nær sanntid ruteovervåkning
(Master thesis, 2006)Tradisjonelt oppleves kollektivtjenester som et dårligere alternativ til å kjøre egen bil. Miljøargumenter hjelper heller ikke spesielt med å få folk til å kjøre mer kollektivt. For å få folk til å sette igjen bilen hjemme ... -
Evaluation of multiuser scheduling algorithm in OFDM for different services
(Master thesis, 2006)The goal of this Master Thesis is to study shared radio resources among users with different services requirements. The analyzed properties of the wireless connection are fairness, throughput and delay for users demanding ...