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JJF 1471-2024 English PDF

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US$939.00 · In stock
Delivery: <= 7 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1471-2024: Calibration Specification for GNSS Signal Simulators
Status: Valid

JJF 1471: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1471-2024	939	Add to Cart	7 days	Calibration Specification for GNSS Signal Simulators	Valid
JJF 1471-2014	1359	Add to Cart	6 days	Calibration Specification for GNSS Signal Simulators	Obsolete

Basic data

Standard ID: JJF 1471-2024 (JJF1471-2024)
Description (Translated English): Calibration Specification for GNSS Signal Simulators
Sector / Industry: Metrology & Measurement Industry Standard
Word Count Estimation: 46,433
Date of Issue: 2024-06-14
Date of Implementation: 2024-12-14
Issuing agency(ies): State Administration for Market Regulation
Summary: This standard applies to the calibration of global navigation satellite system (GNSS) signal simulators (including Beidou RDSS signal simulators).

JJF 1471-2024: Calibration Specification for GNSS Signal Simulators

---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.
National Metrology Technical Specifications of the People's Republic of China Global Navigation Satellite System (GNSS) Signal Simulator Calibration Specifications Released on 2024-06-14 Implementation on 2024-12-14 The State Administration for Market Regulation issued Global Navigation Satellite System (GNSS) Signal Simulator Calibration Specifications Replaces JJF 1471-2014 Responsible unit. National Technical Committee for Time and Frequency Metrology Drafting unit. China Institute of Metrology Beijing Jiaotong University The 10th Research Institute of China Electronics Technology Group Corporation This specification is entrusted to the National Technical Committee for Time and Frequency Metrology for interpretation Drafters of this specification. Yang Zhiqiang (China National Institute of Metrology) Zhang Aimin (China National Institute of Metrology) Liang Kun (Beijing Jiaotong University) Pan Liu (Tenth Research Institute of China Electronics Technology Group Corporation) Liang Guihai (China Electronics Technology Group Corporation's 10th Research Institute)

Introduction (II) 1 Scope(1) 2 References(1) 3 Terminology (1) 4 Overview(1) 5 Metering characteristics (3) 5.1 GNSS signal simulator (3) 5.2 RDSS Inbound Receiver (4) 6 Calibration conditions (4) 6.1 Environmental conditions(4) 6.2 Measurement standards and other equipment (4) 7 Calibration items and calibration methods (6) 7.1 Calibration Items(6) 7.2 Calibration method (7) 8 Expression of calibration results (16) 9 Recalibration interval (17) Appendix A Original Record Format (18) Appendix B Calibration Certificate (Inner Page) Format (24) Appendix C Examples of uncertainty assessment of calibration results (27) Appendix D Method for Generating RDSS Inbound Signals Using a Vector Signal Generator (37) Appendix E Measurement Method for Bidirectional Equipment Delay Measurement Error of RDSS Inbound Receiver (39)

Introduction

JJF 1001-2011 "General metrological terms and definitions", JJF 1071-2010 "National metrological calibration specifications" The JJF 1059.1-2012 “Evaluation and Expression of Uncertainty in Measurement” together constitute the basis for the revision of this specification. Series specifications. This specification is a revision of JJF 1471-2014 "Specification for Calibration of Global Navigation Satellite System (GNSS) Signal Simulators" In addition to the editorial changes, the main revisions are as follows. --- Added calibration of Beidou RDSS signal simulator and Beidou RDSS inbound receiver; ---Added calibration of simulator pseudorange error and pseudorange rate error; ---Added universal counter calibration method for simulator dynamic range and pseudorange rate resolution; --- Added the measurement method of the two-way equipment delay measurement error of the RDSS inbound receiver; --- Supplemented some references, terms and units of measurement. The previous versions of this specification are as follows. ---JJF 1471-2014. Global Navigation Satellite System (GNSS) Signal Simulator Calibration Specifications

1 Scope

This specification applies to global navigation satellite system (GNSS) signal simulators (including Beidou RDSS signal simulators Calibration of the instrument).

2 References

This specification references the following documents. JJF 1001 General metrological terms and definitions JJF 1180 Time and frequency measurement terms and definitions JJF 1403 Global Navigation Satellite System (GNSS) Receiver (Time Measurement Type) Calibration Specification GB/T 19391 Global Positioning System (GPS) Terms and Definitions GB/T 39267-2020 Beidou Satellite Navigation Terminology GB/T 39413-2020 Beidou satellite navigation system signal simulator performance requirements and test methods BD420007 Beidou user terminal RDSS unit performance requirements and test methods For any referenced document with a date, only the version with the date is applicable to this specification; for any referenced document without a date, The latest version (including all amendments) shall apply to this specification.

3 Terminology

3.1 Jerk The time rate of change of acceleration. 3.2 Internal Channel Delay internalchanneldelay The signal delay introduced by the channel characteristics of the simulator's internal channel. The user receives the navigation signal forwarded by the master control station via a high-orbit satellite (GEO), and responds to it through the GEO satellite. The satellite forwards the information to the master control station to complete the distance measurement, and the user position and time parameters are calculated by the navigation system of the master control station. 3.4 RDSSoutboundsignal In the Beidou Satellite Navigation System RDSS service, the radio signal is transmitted by the master control station and forwarded to the user via the satellite. 3.5 RDSSinboundsignal In the Beidou Satellite Navigation System RDSS service, the radio signal is transmitted by the user and forwarded to the master control station via the satellite. 3.6 RDSS two-way time delay of device GNSS signal simulator (hereinafter referred to as simulator) is a GNSS system signal generator used to simulate the generation of special ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1471-2024_English be delivered?

Answer: Upon your order, we will start to translate JJF 1471-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 7 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1471-2024_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1471-2024_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version JJF 1471-2024?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJF 1471-2024 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.