Search for dissertations about: "IF bandwidth."
Showing result 1 - 5 of 111 swedish dissertations containing the words IF bandwidth..
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1. Fair Treatment of Multicast Sessions and Their Receivers : Incentives for more efficient bandwidth utilization
Abstract : Tjänster för strömmad media stiger kraftigt i popularitet, samtidigt som utbudet av denna typ av tjänster ökar. Internet protocol television (IPTV) med standardupplösning levereras redan till många hem, och högupplöst IPTV kommer att bli vanligt inom en relativt snar framtid. READ MORE
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2. Superconducting THz mixers based on MgB2 film
Abstract : Superconducting NbN hot electron bolometer (HEB) mixers are widely used in terahertz radio astronomy. Such mixers have superior performance compared to SIS and Schottky diode mixers at frequency above 1THz. However, their drawback is a limited IF bandwidth. READ MORE
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3. Study of MgB2 and YBa2Cu3O7-x Microbolometers for THz Sensing Applications
Abstract : In this thesis, two novel THz detectors based on magnesium diboride (MgB2)and yttrium barium copper oxide (YBa2Cu3O7-x) are presented. In particular,MgB2 superconductor is used for the investigation of hot-electron bolometer(HEB) mixers, while YBa2Cu3O7-x is explored in microbolometers for room-temperaturecoherent and incoherent detection. READ MORE
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4. Design Aspects of Fully Integrated Multiband Multistandard Front-End Receivers
Abstract : In this thesis, design aspects of fully integrated multibandmultistandard front-end receivers are investigated based onthree fundamental aspects: noise, linearity and operatingfrequency. System level studies were carried out to investigatethe effects of different modulation techniques, duplexing andmultiple access methods on the noise, linearity and selectivityperformance of the circuit. READ MORE
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5. Streaming Video over Unreliable and Bandwidth Limited Networks
Abstract : The main objective of this thesis is to provide a smooth video playout on the mobile device over wireless networks. The parameters that specify the wireless channel include: bandwidth variation, frame losses, and outage time. READ MORE