Search for dissertations about: "time-domain sensing"

Showing result 1 - 5 of 12 swedish dissertations containing the words time-domain sensing.

  1. 1. Radio and Sensor Interfaces for Energy-autonomous Wireless Sensing

    Author : Jia Mao; Lirong Zheng; Zhuo Zou; Markku Åberg; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ultra-wideband; asymmetric UHF UWB radio; clock harvesting; time-domain sensing; energy efficiency; Internet-of-things; Informations- och kommunikationsteknik; Information and Communication Technology;

    Abstract : Along with rapid development of sensing and communication technology, Internet of Things (IoTs) has enabled a tremendous number of applications in health care, agriculture, and industry. As the fundamental element, the wireless sensing node, such as radio tags need to be operating under micro power level for energy autonomy. READ MORE

  2. 2. Optical spectroscopy of turbid media: time-domain measurements and accelerated Monte Carlo modelling

    Author : Erik Alerstam; Atomfysik; []

    Abstract : Optical spectroscopy is a versatile and powerful tool to probe translucent materials. In this work, the focus is on characterization of strongly scattering (turbid) materials by means of time-of-flight spectroscopy (TOFS). READ MORE

  3. 3. Design and development of a microwave multifrequency polarimetric scatterometer for biosphere remote sensing

    Author : Anders Stjernman; Umeå universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Polarimetry; scatterometer; microwave remote sensing; calibration; network analyzer based; S-parameters; scattering matrix;

    Abstract : Microwave radar and radiometer techniques are used to gather crucial information about the earth and its atmosphere. The ERS-1, JERS-1, RadarSAT and NASA’s Mission to Planet Earth projects are designed to study the changing global environment. In all these endeavors, the key instrument is the radar or scatterometer. READ MORE

  4. 4. SAR Remote Sensing of Forests, from Microwaves to VHF

    Author : Hans Israelsson; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; microwave; backscattering models; SAR; VHF; vegetation;

    Abstract : The number of SAR systems available for civilian remote sensing purposes has grown in the nineties. A Synthetic Aperture Radar produces high resolution images of the earth independent on daylight and atmospheric conditions. This thesis mainly examines the applications of SAR remote sensing to monitoring forested areas. READ MORE

  5. 5. Single Copper Nanoparticle Oxidation

    Author : Sara Nilsson; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; dark-field scattering spectroscopy; single particle; plasmonic nanospectroscopy; plasmonic sensing; transmission electron microscopy; oxidation; nanoscale Kirkendall effect;

    Abstract : Cu nanoparticles are commonly used in microelectronic devices and as catalysts in, for example, methanol synthesis and methanol steam reforming reactions. However, Cu nanoparticles are prone to oxidation. READ MORE