1、BSI Standards PublicationDigital terrestrial televisionreceivers for the DTMB systemBS EN 62753:2015National forewordThis British Standard is the UK implementation of EN 62753:2015. It is identical to IEC 62753:2015.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/100,
2、 Audio, video and multimedia systems and equipment.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British S
3、tandards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 80683 4ICS 33.160; 33.170Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October
4、 2015.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 62753:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 62753 October 2015 ICS 33.160; 33.170 English Version Digital terrestrial television receivers for the DTMB system (IEC 62753:2015) Rcepteurs de
5、Tlvision Numrique Terrestre destin au systme DTMB (IEC 62753:2015) Digitale terrestrische Fernsehempfnger fr das DTMB-System (IEC 62753:2015) This European Standard was approved by CENELEC on 2015-07-10. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate th
6、e conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Stan
7、dard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are
8、 the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Po
9、land, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marni
10、x 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 62753:2015 E BS EN 62753:2015EN 62753:2015 2 European foreword The text of document 100/2108/CDV, future edition 1 of IEC 62753, prepared by Technical Area 1
11、 “Terminals for audio, video and data services and contents“ of IEC/TC 100 “Audio, video and multimedia systems and equipment“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62753:2015. The following dates are fixed: latest date by which the document has to be implement
12、ed at national level by publication of an identical national standard or by endorsement (dop) 2016-04-10 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2018-07-10 Attention is drawn to the possibility that some of the elements of this document ma
13、y be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 62753:2015 was approved by CENELEC as a European Standard without any modification. BS EN 62753:2015EN 6275
14、3:2015 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition
15、cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest ver
16、sions of the European Standards listed in this annex is available here: www.cenelec.eu Publication Year Title EN/HD Year IEC 61937-12 - Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 12: Non-linear PCM bitstreams according to the DRA formats EN 61937-
17、12 - ISO/IEC 13818-1 - Information technology - Generic coding of moving pictures and associated audio information - Part 1: Systems - - ISO/IEC 13818-2 - Information technology - Generic coding of moving pictures and associated audio information - Part 2: Video - - ISO/IEC 13818-3 - Information tec
18、hnology - Generic coding of moving pictures and associated audio information - Part 3: Audio - - ETSI ETR 154 - Digital Video Broadcasting (DVB); Implementation guidelines for the use of MPEG-2 Systems, Video and Audio in satellite, cable and terrestrial broadcasting applications - - ETSI TS 102 366
19、 - Digital Audio Compression (AC-3, Enhanced AC-3) Standard - - BS EN 62753:2015 2 IEC 62753:2015 IEC 2015 CONTENTS FOREWORD . 7 INTRODUCTION . 9 1 Scope 10 2 Normative references. 10 3 Abbreviations and symbols 10 4 Summary of DTMB transmission system . 12 4.1 General . 12 4.2 Processing of DTMB tr
20、ansmitter 12 4.3 Processing of DTMB receiver 13 5 Receiver capabilities 13 5.1 Frequency spectrum 13 5.1.1 Frequency range 13 5.1.2 Channel bandwidth 13 5.1.3 Frequency acquisition range . 13 5.2 Power supply requirements . 13 5.3 Interface requirements 13 5.4 Working modes . 14 5.5 Program search a
21、nd tuning 14 5.5.1 General . 14 5.5.2 Receive quality display . 14 5.5.3 Automatic search . 15 5.5.4 Manual search . 15 5.5.5 Modulation parameters change . 15 5.6 Demultiplex characteristics 15 5.6.1 General . 15 5.6.2 TS data rate . 15 5.6.3 STC recovery . 15 5.6.4 Error control . 15 5.6.5 PID fil
22、ters 15 5.6.6 Multi-component programs . 15 5.7 Transport stream decoding characteristics . 16 5.7.1 Service and program information 16 5.7.2 EPG 18 5.7.3 Presentation of subtitle 18 5.8 Function requirements . 18 5.8.1 General . 18 5.8.2 Software version update . 19 5.8.3 Chinese graphical operatio
23、n interface . 19 5.8.4 Service list . 19 5.8.5 Status bar 20 5.8.6 User parameter settings and storage 20 5.8.7 Power failure memory 20 5.8.8 Restore factory settings . 21 5.8.9 Real time clock 21 6 Video and audio system characteristics 21 BS EN 62753:2015IEC 62753:2015 IEC 2015 3 6.1 Video system
24、characteristics . 21 6.1.1 General . 21 6.1.2 Fast acquisition 21 6.1.3 Still images 21 6.1.4 Baseband video input format 21 6.2 Audio system characteristics . 22 7 RF part and channel decoder . 22 7.1 RF port . 22 7.1.1 RF input port 22 7.1.2 RF loop output port 22 7.2 Performance . 23 7.2.1 Failur
25、e point criteria . 23 7.2.2 Carrier to noise ratio threshold . 23 7.2.3 Minimum signal input levels 23 7.2.4 Maximum signal input level 23 7.2.5 Immunity to analogue signals in an adjacent channel 23 7.2.6 Immunity to co-channel analogue signals 24 7.2.7 Immunity to digital signals in an adjacent ch
26、annel . 24 7.2.8 Immunity to co-channel digital signals 25 7.2.9 Resistance to 0 dB echo. 25 7.2.10 Resistance to dynamic multipath channel . 26 7.2.11 Resistance to pulse noise interference . 26 8 Test method 26 8.1 RF demodulation and channel decoding . 26 8.1.1 General . 26 8.1.2 Frequency range
27、27 8.1.3 Frequency acquisition range . 27 8.1.4 Program search and tuning 27 8.1.5 Return loss of RF input port 28 8.1.6 C/N threshold of Gaussian . 29 8.1.7 Signal input level range 29 8.1.8 Immunity to analogue signals in adjacent channels . 30 8.1.9 Immunity to analogue signals in a co-channel .
28、30 8.1.10 Immunity to digital signals in adjacent channels 31 8.1.11 Immunity to digital signals in a co-channel 31 8.1.12 Resistance to 0 dB echo. 32 8.1.13 Resistance to a dynamic multipath channel . 32 8.1.14 Resistance to pulse noise interference . 33 8.2 Demultiplex characteristics 33 8.2.1 TS
29、data rate . 33 8.2.2 STC recovery . 34 8.2.3 Error control . 34 8.2.4 PID filters 35 8.2.5 Multi-component programs processing 35 8.3 Transport stream decoding 35 8.3.1 Service and program information 35 8.3.2 EPG 36 8.3.3 Presentation of text 36 8.4 Power endurance 36 BS EN 62753:2015 4 IEC 62753:2
30、015 IEC 2015 8.4.1 Power voltage endurance . 36 8.4.2 Power frequency endurance . 37 Annex A (normative) Acceptable error free . 38 Annex B (normative) Multipath channel models 39 B.1 Rayleigh channel model 39 B.2 Rice channel model . 39 B.3 Dynamic multipath channel model 40 Annex C (informative) G
31、uide to the implementing of a DRA audio decoder in a DTMB receiver 41 C.1 General . 41 C.2 Outline, terms and definitions 41 C.2.1 Outline . 41 C.2.2 Terms and definitions . 43 C.3 DRA syntax structure 45 C.3.1 General . 45 C.3.2 DRA bit stream 45 C.3.3 Frame 45 C.3.4 Frame header 46 C.4 Semantic. 4
32、7 C.4.1 General . 47 C.4.2 Bit stream 47 C.4.3 Frame 47 C.4.4 Frame header 48 C.4.5 Unpacking window sequence bits . 52 C.4.6 Unpacking Huffman code book selection and application range bits 54 C.4.7 Unpacking quantization index bits of subband samples . 54 C.4.8 Unpacking quantization stepsize inde
33、x bits . 54 C.4.9 Unpacking sum/difference coding decision bits . 54 C.4.10 Unpacking joint intensity coding scale factor bits 55 C.4.11 Unpacking padding bits 55 C.4.12 Unpacking auxiliary data 55 C.5 Decoding 55 C.5.1 Channel arranging and configuration 55 C.5.2 Downmixing . 57 C.5.3 De-interleavi
34、ng 58 C.5.4 Reconstruction of the number of quantification units . 59 C.5.5 Dequantizer . 59 C.5.6 Joint intensity decoding 60 C.5.7 Sum/difference decoding 60 C.5.8 Variable resolution synthesis filter bank 60 C.5.9 Reconstruction of the short/brief window function sequence 63 Bibliography . 64 Fig
35、ure 1 Diagram of DTMB transmitter processing 12 Figure 2 Diagram of DTMB receiver processing 13 Figure 3 Test set-up for frequency range 27 Figure 4 Test set-up for program search and tuning 28 Figure 5 Test set-up for return loss . 29 BS EN 62753:2015IEC 62753:2015 IEC 2015 5 Figure 6 Test set-up f
36、or C/N threshold of Gaussian . 29 Figure 7 Test set-up for signal input level range . 29 Figure 8 Test set-up for immunity to analogue signals in adjacent channels 30 Figure 9 Test set-up for immunity to digital signals in adjacent channels . 31 Figure 10 Test set-up for resistance to 0 dB echo . 32
37、 Figure 11 Test set-up for immunity to pulse noise interference 33 Figure 12 Test set-up for TS data rate 33 Figure 13 Test set-up for STC recovery 34 Figure 14 Test set-up for power voltage and frequency endurance 36 Figure C.1 Decoder 42 Table 1 Power supply requirements 13 Table 2 Requirements of
38、 interface 14 Table 3 Required working modes . 14 Table 4 Requirements of EPG supporting . 18 Table 5 Supporting functions 19 Table 6 Video parameters 21 Table 7 Video format 22 Table 8 C/N for reference AEF . 23 Table 9 Minimum received signal level . 23 Table 10 Immunity to analogue signals in a N
39、 1 adjacent channel 24 Table 11 Immunity to analogue signals in a N + 1 adjacent channel 24 Table 12 Immunity to co-channel analogue signals . 24 Table 13 Immunity to digital signals in an adjacent channel 25 Table 14 Immunity to co-channel digital signals 25 Table 15 Requirements of delay to 0 dB e
40、cho . 25 Table 16 Requirements of C/N thresholds to 30 s echo . 26 Table 17 Resistance to dynamic multipath channel . 26 Table 18 Requirements of pulse noise interference length 26 Table B.1 Rayleigh channel model (static) 39 Table B.2 Rice channel model (static) 40 Table B.3 Dynamic multipath chann
41、el model . 40 Table C.1 Frame structure 47 Table C.2 Data structure of a normal channel . 48 Table C.3 Data structure of LFE channel 48 Table C.4 Frame header type . 49 Table C.5 Difference between two types of frame headers 49 Table C.6 Number of bits used for decoding the length of audio data fram
42、e 49 Table C.7 Sampling frequency supported by this annex 50 Table C.8 Number of bits used for decoding the number of normal channels 50 Table C.9 Number of bits used for decoding the number of LFE channels . 51 Table C.10 Channel configuration auxiliary information decision . 51 Table C.11 Sum/diff
43、erence coding decision 51 BS EN 62753:2015 6 IEC 62753:2015 IEC 2015 Table C.12 Intensity joint coding decision . 51 Table C.13 Window function index 52 Table C.14 Number of transient clusters . 53 Table C.15 Implicit length of a transient cluster of a stationary frame 53 Table C.16 Starting locatio
44、n of the first transient cluster and the location where the first transient occurs . 53 Table C.17 Variables used to decode sum/difference coding decision . 54 Table C.18 All unused sum/difference coding decision 55 Table C.19 Sum/difference coding decision 55 Table C.20 Default normal channel confi
45、guration 56 Table C.21 Presentation of a normal channel configuration 56 Table C.22 Audio data arranging the order of each channel in the audio frame 56 Table C.23 Arranging the order of audio data for 5.1 channel surround sound in the audio frame 57 Table C.24 Subband samples arranged in a natural
46、order . 58 Table C.25 Subband samples arranged in interleaving order . 59 Table C.26 Optional window function around the transient location . 63 BS EN 62753:2015IEC 62753:2015 IEC 2015 7 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DIGITAL TERRESTRIAL TELEVISION RECEIVERS FOR THE DTMB SYSTEM FOREWORD
47、 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electri
48、cal and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to techni
49、cal 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. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreeme
