Search for dissertations about: "UWB"
Showing result 6 - 10 of 58 swedish dissertations containing the word UWB.
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6. Factorized Geometrical Autofocus for Synthetic Aperture Radar Processing
Abstract : Synthetic Aperture Radar (SAR) imagery is a very useful resource for the civilian remote sensingcommunity and for the military. This however presumes that images are focused. There are severalpossible sources for defocusing effects. For airborne SAR, motion measurement errors is the maincause. READ MORE
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7. Towards UWB microwave hyperthermia for brain cancer treatment
Abstract : Despite numerous clinical trials demonstrating that microwave hyperthermia is a powerful adjuvant modality in the treatment of cancers, there have been few instances where this method has been applied to brain tumors. The reason is a combination of anatomical and physiological factors in this site that require an extra degree of accuracy and control in the thermal dose delivery which current systems are not able to provide. READ MORE
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8. TDMA for Low Sampling Rate IR-UWB Receivers
Abstract : In UWB communication sampling plays a key role in detection of the transmitted data. There are various methods of data transmission and detection at the receiver. Mostly, the detection methods are based on frequency domain methods. READ MORE
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9. Ultra-wideband Antenna and Radio Front-end Systems
Abstract : The number of wireless communication applications increase steadily, leading to the competition for currently allocated frequency bands. Pressure on authorities around the world to permit communications in higher and wider frequency ranges to achieve higher wireless capacity than those existed in the past has resulted in several new specifications. READ MORE
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10. Measurement-Based Modeling of Wireless Propagation Channels - MIMO and UWB
Abstract : Future wireless systems envision higher speeds and more reliable services but at the same time face challenges in terms of bandwidth being a limited resource. Two promising techniques that can provide an increased throughput without requiring additional bandwidth allocation are multiple-input multiple-output (MIMO) systems and ultra-wideband (UWB) systems. READ MORE