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GB/T 14733.7-2008: Terminology for telecommunication -- Oscillations, signals and related devices
Status: Valid GB/T 14733.7: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 14733.7-2008 | English | 894 |
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Terminology for telecommunication -- Oscillations, signals and related devices
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GB/T 14733.7-2008
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| GB/T 14733.7-1993 | English | RFQ |
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Terminology for telecommunications. Oscillations, signals and related devices
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GB/T 14733.7-1993
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Basic data | Standard ID | GB/T 14733.7-2008 (GB/T14733.7-2008) | | Description (Translated English) | Terminology for telecommunication -- Oscillations, signals and related devices | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | M30 | | Classification of International Standard | 33.120.01 | | Word Count Estimation | 45,411 | | Date of Issue | 2008-08-06 | | Date of Implementation | 2009-03-01 | | Older Standard (superseded by this standard) | GB/T 14733.7-1993 | | Adopted Standard | IEC 60050 (702)-1992, IDT | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 12 of 2008 (No. 125 overall) | | 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 | | Summary | This standard specifies the oscillation signals and related devices terms and definitions. This section applies to telecommunications technology. | GB/T 14733.7-2008: Terminology for telecommunication -- Oscillations, signals and related devices---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Terminology for telecommunication. Oscillations, signals and related devices
ICS 33.120.01
M30
National Standards of People's Republic of China
GB/T 14733.7-2008/IEC 60050 (702).1992
Replacing GB/T 14733.7-1993
Telecom term oscillations, signals and related devices
(IEC 60050 (702).1992, InternationalElectrotechnicalVocabulary-
Chapter702. Oscilations, signalsandrelateddevices, IDT)
Posted 2008-08-06
2009-03-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
1 Scope 1
2 Terms and definitions 1
2.1 Frequency 1
2.2 oscillations and waves 2
Pulse 2.3 5
2.4 signal (a general term) 6
2.5 discrete signals, digital signals and encoding 11
2.6 modulation and demodulation 13
2.7 transmission characteristics, performance and distortion 20
2.8 noise and interference 29
2.9 Linear and non-linear networks and devices 36
Chinese index 42
English 49 Index
GB/T 14733.7-2008/IEC 60050 (702).1992
Foreword
GB/T 14733 "Telecommunication term" 12 divided into the following sections.
--- Part 1. Telecommunications, channels and networks;
--- Part 2. Transmission lines and waveguides;
--- Part 3. Reliability, maintainability and quality of service;
--- Part 4. switching technology;
--- Part 5. Using the discrete signals, telegraphy, facsimile and data communications;
--- Part 6. space radio communication;
--- Part 7. oscillations, signals and related devices;
--- Part 8. Telephone;
--- Part 9. radio wave propagation;
--- Part 10. antenna;
--- Part 11. Transfer;
--- Part 12. optical fiber communication.
This section GB/T Section 714,733, the equivalent of using IEC 60050 (702).1992 "International Electrotechnical Vocabulary Chapter 702. Vibration
Swing, signals and related devices "(in English).
This Part replaces GB/T 14733.7-1993 "term oscillation telecommunications, signals and related devices."
Section compared with the GB/T 14733.7-1993 The main changes are as follows.
--- This part of the increase of seven new entries and definitions of terms, an increase of 7 synonymous terms, and modify some of the definitions of terms.
--- The preparation of the format of this section has been modified.
This part is proposed by the Ministry of Industry and Information Technology.
This part of the jurisdiction of the China Communications Standards Association.
This section drafted by. Ministry of Information Industry Telecommunications Research Institute.
The main drafters of this section. Jiang Liqun, Wang Nina, Tan Yong, Zhao Shizhuo.
This section was first released in 1993, this is the first revision.
GB/T 14733.7-2008/IEC 60050 (702).1992
Telecom term oscillations, signals and related devices
1 Scope
This section provides terms and definitions oscillation, signals and related devices.
This section applies to telecommunications technology.
2 Terms and definitions
2.1 Frequency
702-01-01
For transmitting information electromagnetic oscillations or electromagnetic waves of frequency range.
702-01-02
In the period between two successive predetermined frequency limits frequency.
Note. The band is stipulated by its two values \u200b\u200b(for example, the upper limit frequency and lower limit frequency) spectrum position to represent.
702-01-03
Defining difference between the two frequency bands between.
Note 1. The frequency bandwidth is usually with a qualifier, for example. baseband bandwidth, necessary bandwidth, the bandwidth of an amplifier or other device bandwidth.
Note 2. The frequency bandwidth with a single value to define, and independent of their position in the spectrum.
702-01-04
In the device or transmission channel, given the frequency characteristics of the reference value does not deviate by more than a predetermined value or ratio of the frequency bandwidth when.
Note. Given the frequency characteristics such as amplitude/frequency characteristic and phase/frequency characteristic or the delay/frequency characteristics.
702-01-05
A type of signal frequency bandwidth, over the upper limit and the lower frequency, any line signal spectrum or power spectral density than that under consideration
Specific reference level at least lower X dB.
702-01-06
On the transmission system-specific input and output points, by one or several signals multiplexed signal occupied band.
Note 1. In radio communication, the baseband modulation signal generated by the transmitter means of occupied band.
Note 2. When using multi-level modulation, the baseband is usually applied to the first stage of the modulation signal occupied band, not the middle of the modulated signal occupied
frequency band.
702-01-07
In physical systems, when the excitation source is removed, the frequency of free oscillations can be any existence.
GB/T 14733.7-2008/IEC 60050 (702).1992
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