PPT-An Empirical Study of Delay Jitter Management Policies

D Stone and K Jeffay Computer Science Department University of North Carolina Chapel Hill ACM Multimedia Systems Volume 2 Number 6 January 1995 Introduction Want to support interactive audio. 5 15 25 35 Jitter Freqiency in MHz RMS Jitter Sensitivity in picoseconds Jitter Measurements Using Phase Locked Loops Z ZQZ Z QQZ Z 587Z Z Q DUT Direct Low Jitter Reference Oscillator Phase Detector Loop Filter Measurement Filter Output at this p MSPS). Extremely low jitter sampling clocks mustperformance is not degraded, because the total jitter is the root-sum-square of the internal sampling clock generation are more often specified in terms (the basics). CS 7270. Networked Applications & Services. Lecture-2. Outline. Basics about voice encoding. Packetization. trade-offs. Architecture of basic VoIP tool. Playback buffer (jitter buffer). ‘. Etuate. Cocker. ecoc005@aucklanduni.ac.nz. Dr.. Ulrich . Speidel. ulrich@cs.auckland.ac.nz. Department . of Computer Science. ,. Tamaki . Campus. ,. The . University of Auckland. Overview. V. oice and data transmissions in low bandwidth and high latency networks . CS 332. Spring 2016. A little quiz. Q: What is network latency?. Changes in delay and duration of the changes. time required to transfer data across a network. amount of data that can be transferred, per unit time.. Transits and SONG. Angelle . Tanner. . The Transit Method. Venus. Transiting the Sun. Information from Transits. Transit Frequency gives us . ORBIT SIZE. Orbit Size with Star Temperature tells us if planet is in . 2.1.Jitter measurements Jitter (absolute) is the cycle-to-cycle variation of fundamental frequency, i.e. the average absolute difference between consecutive periods, expressed as: ()=-iiJitterabsolut Abstract: Total Jitter is an increasingly important quantity in the development and specification of serial data links but, while it is well defined, it is not well understood. Total Jitter is like pe Cooray. G, . Leonardis. L, . Löseth. S, Machado FCN, Maldonado A, Martinez-. Aparicio. C, Sandberg A, Smith B, . Widenfalk. J, Kouyoumdjian JA. Data were also provided by . I. Tomohiro, M. Sonoo, K. Arimura and Y. Arimura. 2.2.2012. Goal: monitor clock jitter during ramping BEAM1 clock. . more than 10 ramps done . . different CORDE delay ranging from 4.4ns to 10ns. . PbPb. 2011 delays were 4.4ns - 6.7ns.. also blow-up applied (a slow change of frequency roughly in the middle of the ramp) . and Scientific Thinking . Brendan Conway. Corrine Vicari. Kaitlyn Creel. Matt Graham . Empirical Thought . Empirical thinking depends on past habit.. Based on observation and experience.. Ex. A-“It will probably rain tomorrow”. PhD thesis defense. Amit . Mondal. Committee. :. Aleksandar Kuzmanovic, . Asst. Professor, Northwestern . Univ. Peter . Dinda. , Assoc. . Professor, Northwestern . Univ. Yan Chen, . Assoc. Professor, Northwestern . Victor Alberto Lopez Nikolskiy. Some theory first. http://knowyourmeme.com/memes/pepe-silvia. Clock jitter. Jitter is the timing variation of a signal edge from its ideal value. In the frequency domain it would look like a broadening of the carrier frequency. Jitter is caused by the superposition of noise sources: the oscillator crystal has thermal noise and creates mechanical perturbations, . Lowest whole # ratio . H. 2. O. 2. (hydrogen peroxide) is it a empirical Formula?. No, you can reduce it to HO . . H. 2. O. 2 . is the molecular formula. Molecular formula shows the way the molecule is actually found in nature..