Essays about: "PLL."

Showing result 16 - 20 of 48 essays containing the word PLL..

  1. 16. Phase-based Extremum Seeking Control

    University essay from KTH/Skolan för elektro- och systemteknik (EES)

    Author : Suying Wang; [2016]
    Keywords : extremum seeking control; phase estimation; phase locked loop; dynamic system; online optimization.;

    Abstract : Extremsökande reglering (ESC) är en modellfri adaptiv reglermetod som kan användas för att lokalisera den optimala arbetspunkten i olinjära processer. Det har nyligen visats att det finns problem med traditionell ESC om det reglerade systemet är dynamiskt. READ MORE

  3. 17. Prototype for Measurement Tools for Evaluating the Crusher Feed using Digital Signal Processing

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Akram Joumaa; [2016]
    Keywords : conecrusher; crushers; feed; feedtracking; phaselockedloop; phasedetector; signal; signalbehandling; Loopfilter; Voltage; OP; FFT; PLL; DSP; AGC; qpll; LPLL; LMS; PID; PD; QD; FIRfilters; Butterworth; Filters; Transimpedance; accelerometer; audiocard; arduino; SandvikAB; Technology and Engineering;

    Abstract : Nowadays, the use of digital signal processing is essential in various measurements of different machines. There has been many projects done at Sandvik AB on how to collect and measure data signals on the cone rock crusher. None of those measurements could present the correct data. READ MORE

  4. 18. Design of a 30 GHz PLL for use in Phased Arrays

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Byron Murphy; [2016]
    Keywords : pll; phase-locked loop; beamforming; vco; qvco; Technology and Engineering;

    Abstract : This project includes the research and implementation of a high frequency phase-locked loop (30 GHz or more) for beamforming use in a phased antenna array. The phase-locked loop includes a quadrature voltagecontrolled oscillator with a 10% tuning range and 417 degrees of phase control with a 10 degree resolution, a current mode latch in the divide-bytwo configuration operates over the quadrature voltage-controlled oscillator’s tuning range while consuming less than 583 uA of current, Dtype flip flops in a divide-by-8 configuration, a phase-frequency detector, a charge-pump, and a loop filter. READ MORE

  5. 19. System Level Modeling and Verification of All-digital Phase-locked Loop

    University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Author : Chi Zhang; [2015]
    Keywords : ;

    Abstract : In wirelesscommunication systems, a local oscillator (LO) aims at demodulating radio-frequency signals into baseband signals. The performance of these signals determines the quality of communications which is highly affected by the phase accuracy of local oscillators. READ MORE

  6. 20. DLL Based Reference Multiplier for the use in a PLL for WLAN applications

    University essay from Lunds universitet/Fysiska institutionen

    Author : Kamal Gupta; [2015]
    Keywords : reference multiplier; Frequency synthesizer; Frequency multiplier; PLL; DLL; Delay locked loop; VCDL; inverter-based VCDL; charge pump; XOR phase detector; phase noise; 4X multiplier; Technology and Engineering;

    Abstract : This master’s thesis project report deals with the design of multiplier for the reference signal to the Phase Locked Loop (PLL) used in WLAN application. The reference multiplier designed is based on a newly proposed architecture of dual loop feedback Delay Locked Loop (DLL) in which multiplication is performed within the loops. READ MORE