Sökning: "Oscillator Phase Noise"

Visar resultat 11 - 15 av 48 avhandlingar innehållade orden Oscillator Phase Noise.

1. 11. Design of narrowband circuits using describing functions

   Författare :Jesper Bank; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; phase noise; mixer; symbolic analysis; distortion; oscillator; describing functions; linearity; power amplifier; efficiency; field effect transistor; conversion gain; noise;

   Sammanfattning : .... LÄS MER

3. 12. On the Design of Communication Systems for Strong Oscillator Phase Noise - Detection Methods and Constellation Optimization

   Författare :Rajet Krishnan; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; maximum a posteriori MAP estimation; constellations; phase noise; maximum likelihood ML detection; Oscillator; symbol error probability; extended Kalman filter EKF ; mutual information.;

   Sammanfattning : The problem of designing wireless communication systems to operate in the presence of oscillator phase noise is a classical problem in communication theory. In recent times, there has been a renewed interest in thisproblem for a multitude of reasons. LÄS MER

4. 13. A Harmonic-Oscillator Design Methodology Based on Describing Functions

   Författare :Jesper Bank; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; oscillator design efficiency; phase noise; impulse sensitivity function; design methodology; amplitude control; frequency tuning; oscillator; describing function;

   Sammanfattning : Oscillators are present in most electronic equipment where they provide timing information, for example as sampling clocks in analog-to-digital converters or as radio carriers in wireless communications. To design an oscillator, we must have knowledge of the properties and the operation of oscillators. LÄS MER

5. 14. On the Impact of Phase Noise in Communication Systems –- Performance Analysis and Algorithms

   Författare :Rajet Krishnan; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Oscillator; phase noise; sum-product algorithm SPA ; random matrix theory; variational Bayesian method; massive MIMO; symbol error probability; maximum a posteriori MAP detection; constellations; extended Kalman filter EKF ; maximum likelihood ML detection; mutual information; multiple-input multiple-output MIMO ; factor graph; free probability.;

   Sammanfattning : The mobile industry is preparing to scale up the network capacity by a factor of 1000x in order to cope with the staggering growth in mobile traffic. As a consequence, there is a tremendous pressure on the network infrastructure, where more cost-effective, flexible, high speed connectivity solutions are being sought for. LÄS MER

7. 15. Oscillator design in III-V technologies

   Författare :Szhau Lai; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MMIC; InGaP HBT; device model; mixer; Darlington pair; GaN HEMT; simulation; varactor; phase noise; CAD; switch mode.; VCO; Colpitts oscillator; low frequency noise;

   Sammanfattning : The thesis treats the design of low phase noise oscillators/VCOs in GaAs/InGaP HBT and GaN HEMT technologies. The covered topics are: active device modeling, noise characterization, passive structures, phase noise models, simulation/measurement tools, circuit topologies, and design techniques. LÄS MER