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GB/T 35591-2017: Assessment and measurement methods of indoor receiving effect of digital terrestrial television broadcasting
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 35591-2017 | English | 279 |
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Assessment and measurement methods of indoor receiving effect of digital terrestrial television broadcasting
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GB/T 35591-2017
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Basic data | Standard ID | GB/T 35591-2017 (GB/T35591-2017) | | Description (Translated English) | Assessment and measurement methods of indoor receiving effect of digital terrestrial television broadcasting | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | M74 | | Classification of International Standard | 33.160.25 | | Word Count Estimation | 14,151 | | Date of Issue | 2017-12-29 | | Date of Implementation | 2017-12-29 | | Regulation (derived from) | National Standards Bulletin 2017 No. 32 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 35591-2017: Assessment and measurement methods of indoor receiving effect of digital terrestrial television broadcasting
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Assessment and measurement methods of indoor receiving effect of digital terrestrial television broadcasting
ICS 33.160.25
M74
National Standards of People's Republic of China
Terrestrial digital television indoor reception effect evaluation method
2017-12-29 Posted
2017-12-29 Implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Foreword Ⅲ
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Abbreviations 1
5 evaluation method classification 1
5.1 Overview 1
5.2 site evaluation methods 1
5.3 virtual scene evaluation method 2
6 site information records 2
6.1 Overview 2
6.2 Geographical information 2
6.3 Spectrum Environment Information 3
6.4 Product Information 4
6.5 Record information 4
7 evaluation project 4
7.1 demodulation performance 4
7.2 demultiplexing performance 5
7.3 decoding performance 5
8 Reviews Location Select 6
8.1 Evaluation of the location 6
8.2 Receiving antenna position 7
9 evaluation process 7
9.1 Field evaluation 7
9.2 Virtual site evaluation 7
9.2.1 Field Signal Acquisition 7
9.2.2 signal playback evaluation 8
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some of this document may be patentable. The issuing agencies of this document do not bear the responsibility of identifying these patents.
This standard proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This standard by the National Audio, Video and Multimedia Systems and Equipment Standardization Technical Committee (SAC/TC242) centralized.
This standard was drafted unit.China Electronics Standardization Institute, the national digital audio and video and multimedia product quality supervision and inspection center,
Shenzhen Digital TV National Engineering Laboratory Co., Ltd., high Extension News (Beijing) Technology Co., Ltd., Beijing Zhongtian Science and Technology Co., Ltd.
Division, Shanghai HD Digital Technology Industry Co., Ltd., Hangzhou Guoxin Technology Co., Ltd., Beijing Haier Integrated Circuit Design Co., Ltd.
The main drafters of this standard. Hu Peng, Chen Renwei, often Lin, Jia Ke, Shi Liang, Liang Weiqiang, Wang Shaojun, Feng Xianghui, Ni Zhibin.
Introduction
Terrestrial digital TV using open transmission. Channel noise and multipath characteristics caused by terrestrial digital TV receiver device receiving level and
Low signal-to-noise ratio, high reception error rate. In order to achieve a good signal reception, terrestrial digital TV transmitter and receiver need to pay
Miscellaneous modulation and demodulation algorithm cost.
Often, laboratory performance testing is often done by designers and manufacturers to evaluate the terrestrial digital TV reception equipment under complex channel conditions
The ability to adjust the ability of the preferred program, but only contains some of the characteristics of the set of indicators is not the terrestrial digital TV receiving equipment, the actual working ability of the integrity
reflect. The terrestrial digital television receiving equipment placed in the actual work environment to be measured, better reflect its performance advantages, work stability and
Ease of operation and other characteristics.
Therefore, in order to fully evaluate the performance of terrestrial digital TV receiving equipment, this standard was formulated on the basis of laboratory performance tests to guide
Product design and inspection.
Terrestrial digital television indoor reception effect evaluation method
1 Scope
This standard specifies the terrestrial digital television receiving equipment that supports the reception of digital terrestrial television sets GB 20600-2006 (hereinafter referred to as
Receiving equipment) indoor reception effect evaluation method.
This standard applies to receive equipment with GB 20600-2006 terrestrial digital television reception.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
Digital television terrestrial broadcasting transmission system frame structure, channel coding and modulation
General specification GB/T 26686 terrestrial digital television receiver
Digital television receiving equipment terminology
3 Terms and definitions
SJ/T 11324-2006 Terms and definitions apply to this document.
4 Abbreviations
The following abbreviations apply to this document.
EIT --- Event Information Table (EventInformationTable)
EPG --- Electronic Program Guide (ElectronicProgramGuide)
PAL --- phase by phase inversion (PhaseAlternateLine)
PID --- Packet Identifier (PacketIdentifier)
PN --- pseudo-random sequence (PseudoNoisesequence)
QAM --- Quadrature Amplitude Modulation (Quadrature AmplitudeModulation)
5 evaluation method classification
5.1 Overview
Indoor reception refers to the receiving equipment placed in the indoor environment to meet the requirements of GB 20600-2006 terrestrial digital television letter
Received.
Terrestrial digital TV indoor reception effect evaluation methods include on-site evaluation methods and virtual field evaluation methods.
5.2 site evaluation methods
On-site evaluation method refers to the field receiving antenna to receive the signal to verify the receiving device receiving effect evaluation method. Evaluation process
In the test equipment should be tested and recorded field information and received by the receiving device was measured results. Site evaluation system shown in Figure 1.
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