Essays about: "radio transmitters"

Showing result 21 - 25 of 36 essays containing the words radio transmitters.

  1. 21. Investigation and Implementation of Coexistence Tool for Antennas

    University essay from Linköpings universitet/Kommunikationssystem; Linköpings universitet/Tekniska högskolan

    Author : Robin Carlsson; [2014]
    Keywords : radio; antenna; co-site interference;

    Abstract : With the increase of the number of radios and antennas on today’s systems, the risk of co-site interference is very high. Intermodulation product and antenna coupling are two common sources of interference. READ MORE

  3. 22. Movement pattern and habitat use of female grass snake (Natrix natrix) in a semi-urban environment

    University essay from SLU/Dept. of Ecology

    Author : Gustav Pettersson; [2014]
    Keywords : grass snake; adaptation; movement; habitat use; translocation; conservation;

    Abstract : Rörelsemönster och habitatanvändning hos ormar är ett område där relativt lite forskning har gjorts trots tecken på minskande populationer på flera platser i världen. Snoken (Natrix natrix) är en vanligt förekommande orm i Sverige som tycks vara på nedgång, troligen på grund av en sämre tillgång på äggläggningsplatser. READ MORE

  4. 23. Minding the spectrum gaps : First steps toward developing a distributed white space sensor grid for cognitive radios

    University essay from KTH/Radio Systems Laboratory (RS Lab)

    Author : Javier Lara Peinado; [2013]
    Keywords : cognitive radio; cooperative spectrum sensing; energy detector; kognitiv radio; kooperativa spektrum avkänning; energi detektor;

    Abstract : The idea that the radio spectrum is growing ever more scarce has become commonplace, and is being reinforced by the recent bidding wars among telecom operators. New wireless applications tend to be deployed in the relatively narrow unlicensed frequency bands, worsening the problem of interference for all users. READ MORE

  5. 24. IP Multicasting over DVB-T/T2/H and eMBMS using PARPS : Effect of the number of transmitters

    University essay from Avdelningen för informations- och kommunikationssystem

    Author : Ranjith Reddy Voladri; [2013]
    Keywords : Unicasting; Broadcasting; Multicasting; DVB-T T2; DVB-H; eMBMS; SFN; MFN; DSFN; PARPS; SSE; MSSE; PARPS; LTE; Coverage probability; Zip-f law; Radio resource management.;

    Abstract : With the advancement in the current wireless technology standards such as terrestrial digital video broadcasting systems (DVB-T, DVB-T2, and DVB-H) and the massive usage of the Internet over mobile devices, streaming of television channels in smart phones has become a necessary advancement for mobile users. As, UMTS dominating the entire mobile market globally and with the evolution of LTE, several mobile operators are working on an MBMS framework which will help to launch mobile TV services on respective operators. READ MORE

  6. 25. Extraction of radio frequency quality metric from digital video broadcast streams by cable using software defined radio

    University essay from Kommunikationssystem; Tekniska högskolan

    Author : Viktor Eriksson; [2013]
    Keywords : QAM; DVB-C; MER; BER; Gardner; Phase locked loop; Mueller Muller; RRC-filter; Carrier recovery; Timing Recovery; Matched filtering;

    Abstract : The purpose of this master thesis was to investigate how effiecient the extractionof radiofrequency quality metrics from digital video broadcast (DVB) streamscan become using software defined radio. Software defined radio (SDR) is a fairlynew technology that offers you the possibility of very flexible receivers and transmitters where it is possible to upgrade the modulation and demodulation overtime. READ MORE