Essays about: "sar reduction"

Found 4 essays containing the words sar reduction.

  1. 1. Sensorless algorithm for synchronous machines using current oversampling and PWM harmonics

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Giorgio Gullone; [2018]
    Keywords : ;

    Abstract : Sensorless-controlled drives represent a solution drawing an increasinglyimportant attention for the benefits they entail. At the cost ofa slightly lower dynamics compared with the traditional drives, theyinvolve a reduction of the system costs and complexity and improvednoise immunity and reliability. READ MORE

  3. 2. Exploitation of Digital Surface Models from Optical Satellites for the Identification of Buildings in High Resolution SAR Imagery

    University essay from KTH/Geoinformatik

    Author : Rebecca Ilehag; [2016]
    Keywords : SAR; DSM; GeoRaySAR; nDSM; building detection;

    Abstract : Interpreting a Synthetic Aperture Radar (SAR) image and detecting buildings can be a difficult task visually. In order acquire an overview of an area that has been affected by a disaster, such as an earthquake, SAR is useful due to its independence of weather conditions and the time of the day. READ MORE

  4. 3. Interaction between the Radiation of LTE MIMO Antennas in a Mobile Handset and the User´s Body

    University essay from KTH/Elektroteknisk teori och konstruktion

    Author : Kun Zhao; [2012]
    Keywords : MIMO; Specific Absorption Rate; Body Loss; Multiplex Efficiency; LTE; Mobile;

    Abstract : Due to the great demand for high-speed wireless communication, Multi Input Multi Output (MIMO) antenna systems have been attracted rapidly increased attention. Therefore, the interaction between human body and MIMO antenna becomes an important issue, which will be studied in the present thesis. READ MORE

  5. 4. Research in SAR reduction by changing composition of phone casing

    University essay from Blekinge Tekniska Högskola/Avdelningen för signalbehandling

    Author : Armin Hodzic; [2007]
    Keywords : SAR reduction;

    Abstract : This thesis is a research conducted to find out if the specific absorption rate (SAR), imposed on the human head from cellular phones, can be reduced without having an significant impact on the overall performance and reception of the phone. The SAR values are influenced by various different variables like, type and size of the antenna, position of the antenna relative to human head, radiated power from the antenna, distance and angle from human head and finally the material covering the phone. READ MORE