IEEE 1521-2003 en Measurement of Video Jitter and Wander《视频抖动和偏移测量的试用标准》.pdf
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1、IEEE Std 1521-2003IEEE Standards1521TMIEEE Trial-Use Standard forMeasurement of Video Jitterand WanderPublished by The Institute of Electrical and Electronics Engineers, Inc.3 Park Avenue, New York, NY 10016-5997, USA6 February 2004IEEE Broadcast Technology SocietySponsored by theG-2.1 Audio Video T
2、echniques CommitteeIEEE StandardsPrint: SH95176PDF: SS95176IEEE Std 1521-2003(R2010)IEEE Standard for Measurementof Video Jitter and WanderSponsorG-2.1 Audio Video Techniques Committeeof theIEEE Broadcast Technology SocietyReaffirmed 25 March 2010Approved 11 September 2003IEEE-SA Standards BoardThe
3、Institute of Electrical and Electronics Engineers, Inc.3 Park Avenue, New York, NY 10016-5997, USACopyright 2004 by the Institute of Electrical and Electronics Engineers, Inc.All rights reserved. Published 6 February 2004. Printed in the United States of America.IEEE is a registered trademark in the
4、 U.S. Patent (978) 750-8400. Permission to photocopy portions of any individual standard for educationalclassroom use can also be obtained through the Copyright Clearance Center.Note: Attention is called to the possibility that implementation of this standard may require use of subject mat-ter cover
5、ed by patent rights. By publication of this standard, no position is taken with respect to the existence orvalidity of any patent rights in connection therewith. The IEEE shall not be responsible for identifying patentsfor which a license may be required by an IEEE standard or for conducting inquiri
6、es into the legal validity orscope of those patents that are brought to its attention.iv Copyright 2004 IEEE. All rights reserved.Introduction(This introduction is not part of IEEE Std 1521-2003, IEEE Trial-Use Standard for Measurement of Video Jitter andWander.)Digital video signals are now being m
7、ultiplexed with other services over nontraditional terrestrial datanetworks at high clock rates. Within these networks, the data is typically buffered to maintain an average bitrate. This can induce unwanted timing impairments in the video delivery, including a new, very low-frequency characteristic
8、 called wander. Heretofore, the measurement and specification of video wander, itsdifferentiation from the more familiar term jitter, and the associated terminology has been poorly defined.This trial-use standard was developed in close cooperation with the Society of Motion Picture andTelevision Eng
9、ineers, which is setting limits for acceptable timing performance of video signals transportedover such networks.ParticipantsAt the time this standard was completed, the G-2.1.4 Subcommittee on Video Distribution Measurementshad the following membership:James R. Redford, ChairMichel Poulin, Vice Cha
10、irAidan P. Moore, Project LeaderDaniel G. Baker, Technical EditorAt the time this standard was completed, the G-2.1 Audio Video Techniques Committee had the followingmembership:Alan Godber, ChairThe following members of the balloting committee voted on this standard. Balloters may have voted forappr
11、oval, disapproval, or abstention. Publication of this trial-use standard for comment and criticism has been approved by theInstitute of Electrical and Electronics Engineers, Inc. Trial-use standards are effective for 24months from the date of publication. Comments for revision will be accepted for 1
12、8 monthsafter publication. Suggestions for revision should be directed to the Secretary, IEEE-SAStandards Board, 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855-1331, and shouldbe received no later than 31 January 2006. It is expected that following the 24-month period,this trial-use standard, re
13、vised as necessary, shall be submitted to the IEEE-SA StandardsBoard for approval as a full-use standard.David FibushAlan GodberJohn J. GriggH. Douglas LungWallace MurrayJames E. ONealRichard StreeterAlexander WoernerJay BallardPaul BergerTim CarrollJoseph KaneH. Douglas LungJames R. RedfordEdmund W
14、illiamsDaniel G. BakerAlan GodberJohn J. GriggH. Douglas LungAidan P. MooreJames E. ONealMichel PoulinJames R. RedfordAlexander WoernerCopyright 2004 IEEE. All rights reserved. vWhen the IEEE-SA Standards Board approved this standard on 11 September 2003, it had the followingmembership:Don Wright, C
15、hairHoward M. Frazier, Vice ChairJudith Gorman, Secretary*Member EmeritusAlso included are the following nonvoting IEEE-SA Standards Board liaisons:Alan Cookson, NIST RepresentativeSatish K. Aggarwal, NRC RepresentativeSavoula AmanatidisIEEE Standards Managing EditorH. Stephen BergerJoseph A. Bruder
16、Bob DavisRichard DeBlasioJulian Forster*Toshio FukudaArnold M. GreenspanRaymond HapemanDonald N. HeirmanLaura HitchcockRichard H. HulettAnant Kumar JainLowell G. JohnsonJoseph L. Koepfinger*Tom McGeanSteve M. MillsDaleep C. MohlaWilliam J. MoylanPaul NikolichGary S. RobinsonMalcolm V. ThadenGeoffrey
17、 O. ThompsonDoug ToppingHoward L. Wolfmanvi Copyright 2004 IEEE. All rights reserved.Contents1. Overview 11.1 Scope 11.2 Purpose. 12. Definitions . 13. Measurement of jitter and wander . 43.1 Jitter measurement . 43.2 Wander measurement 63.3 Optional combination (automated) measurement of jitter, FO
18、, and DR from IFO data 7Annex A (informative) Examples for measuring IFO data . 9Annex B (informative) Terminology hierarchy and demarcation frequency examples 12Annex C (informative) Bibliography. 14Copyright 2004 IEEE. All rights reserved. 1IEEE Trial-Use Standard for Measurement of Video Jitteran
19、d Wander1. Overview1.1 ScopeThis trial-use standard allows the creation of instrumentation technology for consistent measurements ofvideo-related time-interval errors (TIEs).1.2 PurposeThis standard defines a set of measurements to provide metrics to quantify the timing perturbations of avideo signa
20、ls synchronization information. The goal of this measurement standard is to provide consistentand meaningful timing measurements of both digital (discrete-time) and analog (continuous-time) video thatcan be correlated to video system performance. To achieve this goal, this standard makes use of thet
21、raditional engineering concept of analyzing the timing perturbations in terms of a sinusoidal frequencyspectrum, rather than applying statistical metrics to time-domain measurements. A partitioning (filtering) ofthat spectrum is introduced and metrics are assigned for quantifying the timing perturba
22、tions so thatperformance limits, which are directly related to limitations of video timing recovery, buffering andsynchronization, can be set and verified.2. DefinitionsFor purposes of this standard, the following terms and definitions apply. The Authoritative Dictionary ofIEEE Standards Terms, Seve
23、nth Edition B11, should be referenced for terms not defined in this clause.2.1 demarcation frequency: In the context of the sinusoidal spectral content of TIE, it is the frequency thatseparates the low-frequency spectral components that are best quantified in terms of wander from the high-frequency
24、components that are best quantified as jitter. This frequency may be explicitly specified by a jittermeasurement standard for a particular format, such as bit-serial digital video. If not explicitly specified, agood choice for this frequency can be derived from the particular video formats drift-rat
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