Blar i NTNU Open på forfatter "Ramstad, Tor Audun"
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Laveffekts sensorkommunikasjon ved hjelp av multiple transmisjoner og tilbakekopling for bekjempelse av gausse- og impulsstøy
Kawkabishad, Ali (Master thesis, 2008)I denne oppgaven skal en studere hvordan et inkremental transmission system kan bekjempe impulsstøy i tillegg til gausstøy. En strategi kan være at når mottakeren detekterer unormalt store vedier, forsøker den å gi beskjed ... -
Low Power UWB Signaling over a Time-Varying Multipath Channel using Multiple Receiver Antennas
Gjervik, Gunnar (Master thesis, 2011)This thesis explore a digital wireless communication system which is intended for commu- nication from the abdominal region to an on-body receiver. Where a capsule is meant for image capturing of the intestine for better ... -
Nonlinear filtering in digtal image processing
Johansen, Michael (Master thesis, 2011)In this thesis an application named ImageLab have been developed. Image-Lab is an image filtering application focusing on the use of nonlinear filteringprocesses. During development of the software it became clear that ... -
On the Efficiency of Data Communication for the Ultramonit Corrosion Monitoring System
Rommetveit, Tarjei (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 ... -
On the Efficiency of Data Communication for the Ultramonit Corrosion Monitoring System
Rommetveit, Tarjei (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 ... -
Power Efficient Video Communication for Mini Helicopter
Ingvaldsen, Ola Naalsund (Master thesis, 2010)In this thesis, a video communication system for use in a mini helicopter is reviewed. The transmitter is located in a small battery powered mini helicopter, weighing about 15 grams, and the receiver is the helicopter's ... -
Practical Evaluation of IEEE 802.15.4/ZigBee Medical Sensor Networks
Hansen, Mats Skogholt; Støa, Stig (Master thesis, 2006)In clinical diagnostics and treatment of patients, several biological parameters have to be measured and monitored. Typical physiological parameters important to the medical staff are blood gas, invasive blood pressures, ... -
Practical Evaluation of IEEE 802.15.4/ZigBee Medical Sensor Networks
Hansen, Mats Skogholt (Master thesis, 2006)In clinical diagnostics and treatment of patients, several biological parameters have to be measured and monitored. Typical physiological parameters important to the medical staff are blood gas, invasive blood pressures, ... -
Processing Core for Compressing Wireless Data - The Enhancement of a RISC Microprocessor
Olufsen, Eskil Viksand (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 ... -
Reduction of Power Consumption in Video Communication based on Low Frame Rate Transmission and Decoder Frame Interpolation
Daling, Eirik Jenssen (Master thesis, 2011)In order to reduce the power consumption of an endoscope capsule transferring still-images over a wireless channel from inside human intestines to on-body receivers, the transmitted frame rate can be reduced in favor of ... -
Shannon-Kotel’nikov Mappings for Analog Point-to-Point Communications
Floor, Pål Anders; Ramstad, Tor Audun (Peer reviewed; Journal article, 2023) -
Signal Processing for Communicating Gravity Wave Images from the NTNU Test Satellite
Bakken, Marianne (Master thesis, 2012)The NTNU Test Satellite (NUTS) is planned to have a payload for observation of atmospheric gravity waves. The gravity waves will be observed by means of an infrared camera imaging the perturbations in the OH airglow layer. ... -
Ultra-Wideband Sensor-Communication
Amat Pascual, Ángel José (Master thesis, 2008)One of the fundamentals concerns in wireless communications with battery operated terminals is the battery life. Basically there are two ways of reducing power consumption: the algorithms should be simple and efficiently ... -
Ultrabredbåndsoverføring av medisinske bilder
Djupedal, Stian Kristofer (Master thesis, 2007)I forbindelse med overføring av bilder i sensornettverk, er det ønskelig at den totale effektforbruken minimeres for å sikre lang levetid på batteridrevne sensorer. Ved bildekomprimering vil denne effektbruken være avhengig ... -
Ultrasound Contrast Imaging - Improved Tissue Suppression in Amplitude Modulation
Hofstad, Erlend Fagertun (Master thesis, 2006)The ability to image myocardial perfusion is very important in order to detect coronary diseases. GE Vingmed Ultrasound uses contrast agent in combination with a pulse inversion (PI) technique to do the imaging. But this ... -
Ultrasound Contrast Imaging - Improved Tissue Suppression in Amplitude Modulation
Hofstad, Erlend Fagertun (Master thesis, 2006)The ability to image myocardial perfusion is very important in order to detect coronary diseases. GE Vingmed Ultrasound uses contrast agent in combination with a pulse inversion (PI) technique to do the imaging. But this ... -
Velocity Estimation in muscular Tissue by Ultrasound
Dahl, Trond-Olav (Master thesis, 2007)When estimating tissue velocities, the conventional autocorrelation method (AM) is only biased if the demodulation frequency is correctly estimated. While AM assumes the received centre frequency to be constant, the modified ... -
Zero Delay Joint Source Channel Coding for Multivariate Gaussian Sources over Orthogonal Gaussian Channels
Floor, Pål Anders; Kim, Anna N.; Ramstad, Tor Audun; Balasingham, Ilangko (Journal article; Peer reviewed, 2013-05-31)Communication of a multivariate Gaussian source transmitted over orthogonal additive white Gaussian noise channels using delay-free joint source channel codes (JSCC) is studied in this paper. Two scenarios are considered: ...