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JJF 1942-2021 English PDF

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US$709.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1942-2021: Calibration Specification for GNSS Receivers Working at Navigation
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1942-2021	709	Add to Cart	6 days	Calibration Specification for GNSS Receivers Working at Navigation	Valid

Similar standards

JJF 1943 GB/T 36126 GB/T 1885 JJF 1940 JJF 1938

Basic data

Standard ID: JJF 1942-2021 (JJF1942-2021)
Description (Translated English): Calibration Specification for GNSS Receivers Working at Navigation
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A53
Classification of International Standard: 17.160
Word Count Estimation: 32,359
Date of Issue: 2021-12-08
Date of Implementation: 2022-06-08
Issuing agency(ies): State Administration for Market Regulation
Summary: This standard applies to the calibration of navigation-type satellite receivers.

JJF 1942-2021: Calibration Specification for GNSS Receivers Working at Navigation

---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 Calibration specifications for navigation satellite receivers Released on 2021-12-08 2022-06-08 Implementation Released by the State Administration for Market Regulation Calibration specifications for navigation satellite receivers Responsible unit: National Vibration Shock Speed Measurement Technical Committee Main drafting unit: China Aviation Industry Corporation Beijing Great Wall Metrology and Testing Technology graduate School Participating in the drafting unit: Air Force Research Institute Hangyu Lifesaving Equipment Co:, Ltd: Beijing Zhongxing Landing Technology Co:, Ltd: This specification is interpreted by the National Vibration Shock and Speed Measurement Technical Committee The main drafters of this specification: Peng Jun (Beijing Great Wall Institute of Metrology and Testing Technology, Aviation Industry Corporation of China) Li Nana (Beijing Great Wall Institute of Metrology and Testing Technology, Aviation Industry Corporation of China) Participating drafters: Li Qiongwei (Air Force Research Institute) He Qun (Beijing Great Wall Institute of Metrology and Testing Technology, Aviation Industry Corporation of China) Han Juan (Hangyu Lifesaving Equipment Co:, Ltd:) Ma Bo (Beijing Zhongxing Landing Technology Co:, Ltd:)

Introduction (Ⅱ) 1 Scope(1) 2 References(1) 3 terms(1) 4 Overview(1) 5 Metrological characteristics(2) 6 Calibration conditions(2) 6:1 Environmental conditions (2) 6:2 Measuring standards and other equipment (3) 7 Calibration Items and Calibration Methods(5) 7:1 Calibration items(5) 7:2 Calibration method(5) 8 Expression of Calibration Results(12) 9 Recalibration interval(12) Appendix A Receiver Calibration Record Form (13) Appendix B Coordinate Transformation (14) Appendix C Rocket Skid Calibration Process and Standard Trajectory Establishment Method (16) Appendix D Calibration Uncertainty Evaluation Example (18)

Introduction

There are four main calibration parameters for navigation satellite receivers: This specification adopts geodetic standard point method and simulation method to calibrate static Dynamic positioning error; use simulation method, circle method, slide rail method to calibrate dynamic positioning error, speed error and acceleration error: The geodetic standard point method used in this specification mainly refers to JJF 1118-2004 "Global Positioning System (GPS) Receiver Calibration Specifications for Aircraft (Geodesic and Navigation Types), the elevation positioning error is added to the calibration results; the simulation method is used to carry out When performing positioning and velocity calibration, it is consistent with JJF 1403-2013 "Global Navigation Satellite System (GNSS) Receiver (Time The main difference of the "Measurement) Calibration Specification" is that the positioning error is divided into static positioning error and dynamic positioning error, and There are also differences in calibration methods and data processing methods: In addition, this specification formulates the use of a circumference measurement system and a slide rail measurement system, using actual satellite signals to measure The receiver performs dynamic positioning, velocity and acceleration calibration (including calibration method and data processing): This calibration specification is based on the rules and formats given in JJF 1071-2010 "Rules for Compilation of National Metrology Calibration Specifications" prepared by: The measurement uncertainty is based on the rules given in JJF 1059:1-2012 "Assessment and Expression of Measurement Uncertainty" Make an assessment: This specification is published for the first time: Calibration specifications for navigation satellite receivers

1 Scope

This specification applies to the calibration of navigation-type satellite receivers:

2 References

This specification references the following documents: GB/T 18314-2009 Global Positioning System (GPS) measurement specification JJF 1118-2004 Global Positioning System (GPS) Receiver (Geodesic and Navigation) Calibration Specification JJF 1403-2013 Global Navigation Satellite System (GNSS) Receiver (Time Measuring) Calibration Specification GB/T 19391-2003 Global Positioning System (GPS) Terms and Definitions GJB5407-2005 General Specification for Navigation and Positioning Receivers GJB6564-2008 Verification Regulations for Global Positioning (GPS) Receivers For dated references, only the dated version applies to this specification; for undated references document, its latest version (including all amendments) applies to this specification:

3 terms

3:1 data update rate dataupdaterate When the satellite receiver is working normally, the frequency of positioning, speed and other information output: Note: The data update rate of the navigation satellite receiver is greater than 1Hz: The difference between a satellite receiver and a known standard point is generally divided into horizontal positioning error and elevation positioning error: The results are represented by root mean square error of horizontal positioning and root mean square error of elevation positioning respectively: The difference between the position calculated by the receiver and the standard position at each moment when the satellite receiver is in motion: general score are the dynamic horizontal positioning error and the dynamic elevation positioning error, and the results are represented by dynamic horizontal positioning root mean square error and dynamic State height positioning root mean square error representation: 3:4 Velocity error velocity error The difference between the speed obtained by the satellite receiver based on the Doppler frequency shift method and the standard speed, and the result is expressed as the root mean square error of the speed: Poor representation: 3:5 Acceleration error accelerationerror The difference between the acceleration obtained by the satellite receiver and the standard acceleration obtained by performing a differential on the basis of the measured velocity, the result is The result is expressed as the root mean square error of the acceleration:

4 Overview

A satellite navigation system consists of a space segment, a ground control segment and a user segment: satellite receiver ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1942-2021_English be delivered?

Answer: Upon your order, we will start to translate JJF 1942-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1942-2021_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1942-2021_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.