Sökning: "radio series"
Visar resultat 26 - 30 av 97 avhandlingar innehållade orden radio series.
26. Microwave radiometry for studies of variations in atmospheric water vapor and cloud liquid content
Sammanfattning : .... LÄS MER
27. On Coherent and Non-coherent Receiver Structures for Impulse Radio UWB Systems
Sammanfattning : The demand and growth of short-range wireless communications has been tremendous in the past few years for a diverse range of applications. There is significant interest in ultra wideband (UWB) as a physical layer technology for both high-data-rate (HDR), and low power, low-data-rate (LDR) short-range communications. LÄS MER
28. On Modulation and Detection Schemes for Low-Complexity Impulse Radio UWB Communications
Sammanfattning : Due to wealth of advantages offered by short range ultra wideband (UWB) technology, such as capacity improvement, fading reduction and localization, it has gathered a considerable attention. Distinct UWB qualities also pose many system design challenges like difficulties in using digital processing, complex channel estimation and different propagation characteristics. LÄS MER
29. Spectrum Sensing for Dynamic Spectrum Access in Cognitive Radio
Sammanfattning : Abstract. The number of mobile devices is constantly growing, and the exclusivestatic spectrum allocation approach is leading to the spectrum scarcity problem whensome of the licensed bands are heavily occupied and others are nearly unused.Spectrum sharing and opportunistic spectrum access allow achieving more efficientspectrum utilization. LÄS MER
30. Development and Evaluation of OpenLabs and the VISIR Open Electronics and Radio Signal Laboratory for Education Purpose
Sammanfattning : Part I and II of this thesis constitute a theoretical and practical approach on how to open up a laboratory for remote access and enabling students to have access to the equipment 24/7. Part I covers a more general solution for enabling remote access to equipment; the suggested solution can be applied to all types of instruments that can be controlled from a PC based system. LÄS MER