Sökning: "detector circuit"

Visar resultat 16 - 20 av 32 uppsatser innehållade orden detector circuit.

  1. 16. Performance Evaluation and Comparison of Coherent and Incoherent Receivers under Atmospheric Turbulence

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :Mohamed Kazaludeen Akbar; [2014]
    Nyckelord :Free-Space Optical Communication FSO ; Signal to Noise Ratio SNR ; Avalanche Photodiode APD ; Probability Density Function PDF ; Cumulative Distribution Function CDF ; Bit Error Rate BER ;

    Sammanfattning : Optical free space communication system faces the major challenge because of the atmospheric condition. Signals receive in the ground station using two different types of receivers (Coherent detection and Intensity Modulation and Direct Detection (IM/DD)). LÄS MER

  3. 17. Konstruktion av kontroller för högspänningsswitchning

    Uppsats för yrkesexamina på grundnivå, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Filip Jambor; [2014]
    Nyckelord :Embedded Systems; PIC-Programming; PCB-Design.; Inbyggda system; PIC-Programmering; Kretskortsdesign.;

    Sammanfattning : I det här examensarbetet har hårdvara och mjukvara för att styra switchningen av en högspänning till en röntgendetektor utvecklats. Examensarbetet har utförts på uppdrag av företaget XCounter som utvecklar avancerade röntgendetektorer. Resultatet av arbetet är ett kretskort som monteras i en av företagets röntgendetektorer. LÄS MER

  4. 18. Design and Simulation of Miscellaneous Blocks of an All-Digital PLL for the 60 GHz Band

    Master-uppsats, Elektroniksystem; Tekniska högskolan

    Författare :Hadiyah Butt; Manjularani Padala; [2013]
    Nyckelord :ADPLL; PLL; DCO; TDC;

    Sammanfattning : A phase-locked loop commonly known as PLL is widely used in communication systems. A PLL is used in radio, telecommunications, modulation and demodulation. It can be used for clock generation, clock recovery from data signals, clock distribution and as a frequency synthesizer. Most electronic circuits encounter the problem of the clock skew. LÄS MER

  5. 19. Laser Music System : Implemented using lasers, infrared sensors, photocells and a Arduino Microcontroller

    Kandidat-uppsats, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE)

    Författare :Astra Woodruff; Burak Görmez; [2012]
    Nyckelord :laser system; electronic instrument; microcontroller; IR range sensors; laser diodes; photocells; detector circuit; MIDI; triangulation;

    Sammanfattning : A Laser Music System has been created, that combines a laser and light sensor system with an infrared distance sensing system that detects the position of a user’s hand when it intersects one or more of the individual laser beam. The laser beams, which are made visible by a small amount of smoke in a dark room, provide visual guidance to the user to reduce the difficulty of using a non-contact instrument as well as enhancing an appealing optical effect for the user. LÄS MER

  7. 20. Impact of non-idealities and integrator leakage on the performance of IR-UWB receiver front end

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Tharakaramu Navineni; [2012]
    Nyckelord :IR-UWB; non-coherent energy detector; system modeling; non-idealities; integrator leakage; BER; Matlab;

    Sammanfattning : UWB has the huge potential to impact the present communication systems due to its enormous available bandwidth, range/data rate trade-off, and potential for very low cost operation. According to FCC, Ultra Wideband (UWB) radio signal defined as a signal that occupies a bandwidth of 500 MHz or fractional bandwidth larger than 20% with strict limits on its power spectral density to -41. LÄS MER