Essays about: "DF"

Showing result 26 - 30 of 47 essays containing the word DF.

  1. 26. Indoor Positioning Using Angle of Departure Information

    University essay from Linköpings universitet/Fysik och elektroteknik; Linköpings universitet/Tekniska högskolan

    Author : Erica Gunhardson; [2015]
    Keywords : IPS; DF; MISO; EKF; Bearing-Only; Bearing-Range; MUSIC;

    Abstract : I detta examensarbete undersöks möjligheten att kunna använda en positioneringsmetod som inte enbart förlitar sig på den uppmätta signalstyrkan. Istället används en metod som bestämmer från vilken vinkel en signal uppkommer ifrån. Den här tekniken kallas för direction-finding. READ MORE

  3. 27. Developing Edu-Tourism In An Urban Indigenous Community : The Case Of Aldeia Bananal (Brasília – DF – Brazil)

    University essay from Mittuniversitetet/Avdelningen för turismvetenskap och geografi

    Author : Otávio Augusto Diniz Vieira; [2014]
    Keywords : ;

    Abstract : This work aims at developing a tourist visit to the Aldeia Bananal, a community located in Brasília, the Brazilian capital. The community is composed of three ethnic indian groups: Kariri-Xokó, Tuxá and Fulni-ô. The reason of the study is to research and develop Indigenous Tourism. READ MORE

  4. 28. The Performance of Dual-Hop Decode-and-Forward Underlay Cognitive Relay Networks with Interference Power Constraints over Weibull Fading Channels

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Andawattage Chaminda Janaka Samarasekera; [2014]
    Keywords : Cognitive Radio; Weibull Fading Channels; Cooperative Communication; Cognitive Relay Networks;

    Abstract : With the rapid development and the increasing use of wireless devices, spectrum scarcity has become a problem. The higher frequencies have bad propagation characteristics and the lower frequencies have low data rates, therefore the radio spectrum that is available for efficient wireless transmission is a limited resource. READ MORE

  5. 29. Performance Analysis of 3-hop using DAF and DF over 2-hop Relaying Protocols

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Faisal Mehmood; Muneeb Ejaz; [2013]
    Keywords : Bit Error Rate; Cognitive Radio; Decode Amplify and Forward; Energy Detection; Probability of Detection; Rayleigh Fading; Relay Network;

    Abstract : In wireless Communication, the need of radio spectrum increases nowadays. But in the system we are losing approximately 82-86% of spectrum most of the time due to the absence of Primary User (PU). To overcome this issue Cognitive Radio (CR) is an admirable approach. READ MORE

  6. 30. VITA 49 Radio DF : Using coherent digital receiver set with VC++ and Octave

    University essay from Avdelningen för elektronikkonstruktion

    Author : Daniel Perup; [2013]
    Keywords : Radio direction finding; DF; Octave; MATLAB; signal analysis; VITA 49;

    Abstract : The objective of this thesis was to evaluate radio receivers that had been previously acquired for other tasks by the Swedish Defence Materiel Administration, for additional service in a radio direction finding (DF) system. The antenna, calibration signal generator and DF algorithm were provided. READ MORE