JJG 721-2010 English PDF

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JJG 721-2010: Verification regulation of phase noise measurement system
Status: Valid

JJG 721: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 721-2010	399	Add to Cart	3 days	Verification regulation of phase noise measurement system	Valid
JJG 721-1991	319	Add to Cart	3 days	Verification Regulation of 500MHz Phase Noise Measurement Set (Phase Detector Method)	Obsolete

Similar standards

GB/T 3222.2   GB/T 3222.1   JJG 188   JJG 921   JJG 778   JJG 185   

Basic data

Standard ID: JJG 721-2010 (JJG721-2010)
Description (Translated English): Verification regulation of phase noise measurement system
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A59
Classification of International Standard: 17.140
Word Count Estimation: 17,189
Date of Issue: 2010-09-06
Date of Implementation: 2011-03-06
Older Standard (superseded by this standard): JJG 721-1991
Regulation (derived from): AQSIQ Announcement No. 100 of 2010
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to the phase noise measurement system (using quadrature phase detection method and the frequency discriminator method) of the initial verification, testing and use of follow-up inspection.

JJG 721-2010: Verification regulation of phase noise measurement system

---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.
Verification regulation of phase noise measurement system State verification procedures People's Republic of China Phase Noise Measurement System Issued on. 2010-09-06 2011-03-06 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Phase Noise Measurement System Verification Regulation stem Replacing JJG 721-1991 The regulations by the State Administration of Quality Supervision, Inspection and Quarantine approved on September 6, 2010, and from From March 6, 2011 into effect. Focal point. the National Commission on Time and Frequency Measurement Technology The main drafting units. China Aerospace Science and Industry Corporation hospital two hundred and three Participated in the drafting unit. China Institute of Metrology The national time and frequency measurement procedures commissioned technical committee responsible for the interpretation The main drafters of this procedure. Han (China Aerospace Science and Industry Corporation hospital two hundred and three) Yan Dongliang (China Aerospace Science and Industry Corporation hospital two hundred and three) Drafters participate. Zhang Aimin (China Institute of Metrology) Yang Jun (China Aerospace Science and Industry Corporation hospital two hundred and three)

table of Contents

1 Scope (1) 2 terminology and units of measurement (1) 3 Overview (1) Use 3.1 (1) 3.2 Composition and working principle (1) 4 metering performance requirements (2) 4.1 phase noise floor (excluding downconverter) (2) 4.2 under the technical performance of the inverter (2) 4.3 AM noise floor (3) 5 General technical requirements (4) 5.1 Appearance and accessories (4) 5.2 work of (4) 6 Control of measuring instruments (4) 6.1 Verification condition (4) 6.2 test items and test methods (6) 6.3 test results processing (10) 6.4 test cycle (10) Appendix A test certificate-page format (11) Appendix B test results of notice-page format (12) Phase noise measurement system verification procedures

1 Scope

This procedure is applied to the phase noise measurement system (using orthogonal phase detection method and frequency discriminator method) initial verification, subsequent Verification and in-service inspection.

2 terminology and units of measurement

2.1 Phase Noise phasenoise Frequency domain characterization of frequency stability. It is defined as a single-sideband signal at the carrier frequency deviation from unit bandwidth (take 1Hz) in tune Phase power and the carrier side band power ratio. Units of dBc/Hz. Deviation from the carrier frequency deviation value is called the Fourier frequencies. 2.2 phase noise floor phasenoisefloor Under certain carrier frequency and power, phase noise measurement system measurement capability limits. Unit is dBc/Hz. 2.3 The phase detector constant phasedetectioncoefficient DUT phase fluctuations and the phase detector output voltage relationship between the ups and downs. Usually expressed Kφ. Unit is V/rad. 2.4 additional phase noise additionalphasenoise Phase noise frequency control components introduced. Units of dBc/Hz. 2.5 AM noise amplitude-modulationnoise SSB signal at the carrier frequency deviation from unit bandwidth (take 1Hz) AM-side power and carrier power ratio band. single Bit dBc/Hz. Deviation from the carrier frequency deviation value is called the Fourier frequencies.

3 Overview

3.1 Purpose Phase noise measurement system (hereinafter referred to as the measuring system) for measuring the phase noise sources at various frequencies and the respective Additional types of phase noise frequency control components, is widely used in telecommunications engineering, time and frequency measurement and other fields. 3.2 Composition and working principle Mainly by the phase noise test interface, down-converter, and data acquisition processor (spectrum analyzer or A/D acquisition) And computer components, system software through the interface can be measured for each of the portions and the default reference source other than a computer Program-controlled; direct phase detecting frequency range of 50kHz ~ 26.5GHz, can be seized by the extended frequency downconverter To 40GHz; Block diagram of the measurement system components shown in Figure 1. ......

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