1、 IEC 62028 Edition 1.0 2002-02 INTERNATIONAL STANDARD NORME INTERNATIONALE General methods of measurement for digital television receivers Mthodes de mesure gnrales pour rcepteurs de tlvision numriques IEC 62028:2002 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2002 IEC, Geneva, Switzerland All
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16、 IEC 62028 Edition 1.0 2002-02 INTERNATIONAL STANDARD NORME INTERNATIONALE General methods of measurement for digital television receivers Mthodes de mesure gnrales pour rcepteurs de tlvision numriques INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE X ICS 33.160.
17、20 PRICE CODE CODE PRIX ISBN 2-8318-6226-4 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 62028 IEC:2002 CONTENTS FOREWORD . 6 1 Scope . 7 2 Normative references . 7 3 Terms, definitions and abbreviations 8 3.1 Te
18、rms and definitions 8 3.2 Abbreviations 8 4 Conceptual block diagram of digital television receivers . 11 4.1 General . 11 4.1.1 Types of receivers . 11 4.1.2 Peripheral connectors 11 4.2 Basic common block diagram 11 4.2.1 General . 11 4.2.2 Satellite broadcasting system 11 4.2.3 Terrestrial broadc
19、asting system . 11 4.2.4 CATV system. 12 5 General notes on measurements 12 5.1 General conditions 12 5.2 Test signals . 12 5.2.1 Video test signals 12 5.2.2 Audio test signals 12 5.2.3 Data test signals 12 5.3 RF (radio frequency) television signal 13 5.3.1 General . 13 5.3.2 Reference modulation 1
20、3 5.3.3 Signal level 13 5.4 Measuring systems and test instruments . 13 5.4.1 Measuring system . 13 5.4.2 Base band test signal generators . 13 5.4.3 Service data generator 13 5.4.4 Encoders . 13 5.4.5 Modulator 14 5.4.6 BER analyzer 14 5.5 Standard measuring conditions . 14 5.5.1 Standard input sig
21、nal levels . 14 5.5.2 Standard output signal levels . 14 5.5.3 Standard receiver settings . 14 5.5.4 General conditions 14 5.6 Standard viewing conditions 14 6 Assessment of received picture and sound quality 15 6.1 Subjective tests of basic received quality 15 6.1.1 Objectives . 15 6.1.2 Methodolog
22、y 15 7 Methods of measurement of RF signals 17 7.1 General . 17 7.2 Method of measurement of RF signal level 20 62028 IEC:2002 3 7.2.1 Introduction . 20 7.2.2 Equipment required . 20 7.2.3 Connection of the equipment . 20 7.2.4 Measurement procedure 20 7.2.5 Presentation of the results . 21 7.3 Meth
23、od of measurement of carrier to noise ratio (C/N) 21 7.3.1 Introduction . 21 7.3.2 Equipment required . 21 7.3.3 Connection of the equipment . 22 7.3.4 Measurement procedure 22 7.3.5 Presentation of the results . 22 7.4 Method of measurement of Bit Error Rate (BER) . 22 7.4.1 Introduction . 22 7.4.2
24、 Equipment required . 23 7.4.3 Connection of the equipment . 23 7.4.4 Measurement procedure 23 7.4.5 Presentation of the results . 24 7.5 Method of measurement of BER versus E b /N o24 7.5.1 Introduction . 24 7.5.2 Equipment required . 24 7.5.3 Connection of the equipment . 24 7.5.4 Measurement proc
25、edure 25 7.5.5 Presentation of the results . 25 7.6 Method of measurement of noise margin . 26 7.6.1 Introduction . 26 7.6.2 Equipment required . 26 7.6.3 Connection of the equipment . 27 7.6.4 Measurement procedure 27 7.6.5 Presentation of the results . 27 7.7 Method of measurement of Modulation Er
26、ror Ratio (MER) . 27 7.7.1 Introduction . 27 7.7.2 Equipment required . 28 7.7.3 Connection of the equipment . 28 7.7.4 Measurement procedure 28 7.7.5 Presentation of the results . 29 7.8 Method of measurement of phase jitter 29 7.8.1 Introduction . 29 7.8.2 Equipment required . 29 7.8.3 Connection
27、of the equipment . 30 7.8.4 Measurement procedure 30 7.8.5 Presentation of the results . 31 7.9 Method of measurement of phase noise of a RF carrier . 31 7.9.1 Introduction . 31 7.9.2 Equipment required . 32 7.9.3 Connection of the equipment . 32 7.9.4 Measurement procedure 32 7.9.5 Presentation of
28、the results . 33 8 Measurements of the MPEG-2 transport stream . 33 8.1 Introduction . 33 4 62028 IEC:2002 8.2 Method of measurement 34 8.2.1 Introduction . 34 8.2.2 Equipment required . 34 8.2.3 Connection of the equipment . 34 8.2.4 Measurement procedure 34 8.2.5 Presentation of the results . 37 A
29、nnex A (normative) Digital signal level and bandwidth . 40 Annex B (normative) Correction factor for spectrum analyser . 44 Annex C (normative) Correction factors for noise . 45 Bibliography 47 Figure 1 Conceptual configuration of a digital broadcasting system 12 Figure 2 Measuring set-up . 15 Figur
30、e 3 Layout of a basic received quality assessment trial 16 Figure 4 Rating scales used in the basic received quality test 17 Figure 5 Reference RF signal source I/Q signal source and RF modulator 18 Figure 6 Reference receiver . 19 Figure 7 Test set-up for BER measurement . 23 Figure 8 Test set-up f
31、or BER measurement versus E b /N o25 Figure 9 Example of BER measurement versus E b /N o26 Figure 10 Test set-up for noise margin measurement . 27 Figure 11 Test set-up for MER measurement . 28 Figure 12 Example of constellation diagram for a 64QAM modulation format where the i thpoint has been enla
32、rged to show the co-ordinates of the symbol error vector 29 Figure 13 Test set-up for phase jitter measurement . 30 Figure 14 Example of constellation diagram for a 64QAM modulation format where are shown the “corner decision boundary boxes“ for the phase jitter . 30 Figure 15 Test set-up for phase
33、noise measurement 32 Figure 16 Possible mask for CPE measurements the points A, B and C to be defined . 33 Figure 17 Measurement set-up for the evaluation of the MPEG-2 transport stream parameters for a communication link using a coaxial cable and synchronous serial transmission (SSI type) . 37 Figu
34、re 18 Measurement set-up for the evaluation of the MPEG-2 transport stream parameters for a communication link using a fibre-optic cable and synchronous serial transmission (SSI type) . 37 Figure 19 Measurement set-up for the evaluation of the MPEG-2 transport stream parameters for a communication l
35、ink using a coaxial cable and asynchronous serial transmission (ASI type) . 38 Figure 20 Measurement set-up for the evaluation of the MPEG-2 transport stream parameters for a communication link using a fibre-optic cable and asynchronous serial transmission (ASI type) . 38 Figure 21 Measurement set-u
36、p for the evaluation of the MPEG-2 transport stream parameters for a communication link that feeds a CATV system using a satellite transponder and a down link in the 11/12 GHz band . 38 Figure 22 Measurement set-up for the evaluation of the MPEG-2 transport stream parameters for a communication link
37、 that feeds a SMATV system using a satellite transponder and a down link in the 11/12 GHz band . 39 Figure A.1 VSB channel occupancy . 41 62028 IEC:2002 5 Figure C.1 Noise correction factor CF (dB) versus measured level difference D (dB) . 46 Table 1 Frequency offsets for 2k and 8k OFDM systems 33 T
38、able 2 First priority necessary for de-codability (basic monitoring) 35 Table 3 Second priority recommended for continuous or periodic monitoring. 35 Table 4 Third priority application dependant monitoring 36 Table A.1 Examples of bandwidth for digital modulation techniques . 43 Table C.1 Noise corr
39、ection factor . 45 6 62028 IEC:2002 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ GENERAL METHODS OF MEASUREMENT FOR DIGITAL TELEVISION RECEIVERS FOREWORD 1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national electrotechnical com
40、mittees (IEC National Committees). The object of the IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, the IEC publishes International Standards. Their preparation is entr
41、usted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the In
42、ternational Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects
43、 since each technical committee has representation from all interested National Committees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical specifications, technical reports or guides and they are accepted by the
44、National Committees in that sense. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard and the correspon
45、ding national or regional standard shall be clearly indicated in the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. 6) Attention is drawn to the possibility that so
46、me of the elements of this International Standard may be the subject of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62028 has been prepared by IEC technical committee 100: Audio, video and multimedia systems and equip
47、ment. This bilingual version (2011-12) corresponds to the monolingual English version, published in 2002-02. The text of this standard is based on the following documents: CDV Report on voting 100/232/CDV 100/427/RVC Full information on the voting for the approval of this standard can be found in th
48、e report on voting indicated in the above table. The French version of this standard has not been voted upon. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. Annexes A, B, and C form an integral part of this standard. The committee has decided that the contents o
49、f this publication will remain unchanged until 2004. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. 62028 IEC:2002 7 GENERAL METHODS OF MEASUREMENT FOR DIGITAL TELEVISION RECEIVERS 1 Scope IEC 62028 deals with the standard conditions and methods of measurement on digital television receivers which receive digita
