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Investigating Jitter in Signal Processing: Midterm Experiment Overview

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elvis
12 diapositives · 276 Views · Aug 08, 2014

This presentation outlines the objectives and accomplishments of the Jitter Experiment conducted in Spring 2008 by Oleg Greenberg and Evgeny Hahamovich under the supervision of Mony Orbah. The project's goal was to create an environment to study jitter types and sources through theoretical and practical approaches. Utilizing an FM Tabor Arbitrary Waveform Generator and an Agilent Oscilloscope, the experiment includes tasks such as comparing clean and noisy signals, analyzing histograms for various waveforms, and exploring jitter measurement relationships. The presentation details implementation challenges and an estimated timeline for completing the project.

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Transcription de la présentation

  1. Spring 2008 Jitter ExperimentMidterm presentation Performed by Greenberg Oleg Hahamovich Evgeny Supervised by Mony Orbah

  2. Agenda • Objective • Exp. environment • Accomplished Tasks • Topics to be covered • Implementation difficulties • Time Table

  3. Objective Creating an experiment environment, which will include theoretical introduction and practical exposure to the jitter subject, allowing the student to investigate and get familiar with Jitter types, components and sources

  4. Experiment Environment Jitter created by FM Tabor Arbitrary Waveform Generetor 2571a Maximum frequency 100 MHz Sampling Rate 250 MS/s Ability to create different Modulation types Agilent Oscilloscope MS08104A Bandwidth 1 GHz Sample Rate 4 GS/s Customization Package, Jitter and Timing Analysis

  5. Accomplished Tasks • Eye diagram comparing between eye diagram of a clean signal vs. “noisy” (modulated) signal Unmodulated signal FM modulated signal

  6. Accomplished Tasks • Histogram - Histograms for different wave shapes - Histograms for different jitter measurement types TIE histogram for FM modulation by a sin wave Sin wave histogram

  7. Accomplished Tasks • Relation between different jitter measurement types - Visualization of diff-int relation between jitter measurement types - Calculating ratio of Std Dev for different jitter measurement types

  8. Modulation by Square wave TIE jitter trend Period jitter trend C2C jitter trend

  9. Std Dev Calculation

  10. Topics to be covered Implementation difficulties • DCD create and measure for different waveforms (tabor) • Bathtub curve theory and relation to eye diagram, BER explanation, extrapolation theory (ezjit+) • Methods for jitter separation - Dual Dirac model + tail fit method - Furrier transport (ezjit+)

  11. Time Table • Implementing the uncovered parts of the experiment - DCD implementation option check ½ week - Bathtub curve 1 week - Jitter separation methods 1 week 2 weeks • Writing detailed documentation including step by step guidance to scope setup and measurement theory 2 weeks • Preparing final presentation 1 week Estimated deadline - mid. October

  12. Questions