GB/T 39615-2020.Specifications for testing of reference stations using global navigation satellite system.
1 Scope
GB/T 39615 specifies the test requirements, test contents, test methods, performance indicators and submission materials
for satellite navigation and positioning reference station networks. GB/T 39615 is applicable to the testing of satellite navigation and positioning reference station networks, and the operation, maintenance and application services of satellite navigation and positioning reference station networks can be referred to for implementation.
2 Normative references
The following documents are indispensable for the application of this document. For any dated referenced document, only the dated version applies to this document. For any undated referenced document, the latest version (including all amendments) applies to this document.
GB/T 18314 Global Positioning System (GPS) Measurement Specifications
GB/T 28588-2012 Technical Specifications for Continuously Operating Base Station Networks of Global Navigation Satellite Systems
GB/T 35767-2017 Basic Product Specifications for Satellite Navigation and Positioning Base Station Networks
GB/T 35768-2017 Specifications for Service Management Systems of Satellite Navigation and Positioning Base Station Networks
GB/T 35769-2017 Specifications for Satellite Navigation and Positioning Base Station Network Services
CH/T 2009-2010 Technical Specifications for Real-Time Kinematic (RTK) Measurements of Global Positioning Systems
CH/T 2018-2018 Technical Specifications for Testing Satellite Navigation and Positioning Base Station Networks
CH 8016-1995 Global Positioning System (GPS) Measurement Receiver Verification Procedure
3 Terms and Definitions
GB/T 35769-2017, CH/T 2009-2010 and CH/T 2018-2018 and the following terms and definitions apply to this document. For ease of use, some terms and definitions in GB/T 35769-2017, CH/T 2018-2018 and CH/T 2009-2010 are repeated below.
3.1
System time availability
The percentage of time that the system can provide effective navigation and positioning services to users over a period of time.
[CH/T 2018-2018, definition 3.3]
3.2
User time availability
The percentage of the time that a user obtains system navigation and positioning services and effectively locates in a period of time.
[CH/T 2018-2018, definition 3.4]
This standard specifies the test requirements, test contents, test methods, performance indicators, and submission materials for satellite navigation and positioning reference station networks. This standard is applicable to the testing of satellite navigation and positioning reference station networks, and the operation, maintenance, and application services of satellite navigation and positioning reference station networks can be implemented as a reference.

ICS07.040
National Standard of the People's Republic of China
GB/T39615—2020
Specifications for testing of reference stations using global navigation satellite system
Published on 2020-12-14
State Administration for Market Regulation
National Administration of Standardization
Implemented on 2020-12-14
GB/T39615—2020
Normative reference documents
Terms and definitions
Abbreviations
Testing requirements
Functional test content and methods
Performance test content and methods
8 Submitted materials
Appendix A (Informative Appendix)
Appendix B (Informative Appendix)
Appendix C (Informative Appendix)
Functional test record
Performance test record
Test report
This standard was drafted in accordance with the rules given in GB/T1.1-2009. This standard was proposed by the Ministry of Natural Resources of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Geographic Information Standardization (SAC/TC230). GB/T39615—2020
This standard was drafted by the Information Engineering University of the Strategic Support Force of the Chinese People's Liberation Army, the National Basic Geographic Information Center, Jiangsu Institute of Surveying and Mapping Engineering, Shandong Institute of Land Surveying and Mapping, Anhui Basic Surveying and Mapping Information Center, 61363 Unit of the Chinese People's Liberation Army, 61365 Unit of the Chinese People's Liberation Army, and Henan Institute of Surveying and Mapping Engineering. The main drafters of this standard are: Chen Mingjian, Li Wanli, Wu Junli, Li Junyi, Wang Yong, Chen Ming, Wang Kaifeng, Zhang Lixiang, Zhang Haiping, Gao Shimin, Cheng Guangyi, Ouyang Guichong, Tang Yupei, Zhang Lichao, Zhou Qiang, Chen Rui, Zuo Zong, Chen Yongxiang. a
1 Scope
Technical specification for satellite navigation and positioning reference station network testing GB/T39615—2020
This standard specifies the test requirements, test content, test methods, performance indicators, and submission materials for satellite navigation and positioning reference station networks. This standard applies to the testing of satellite navigation and positioning reference station networks, and the operation, maintenance, and application services of satellite navigation and positioning reference station networks can be referred to for implementation.
Normative referenced documents
The following documents are indispensable for the application of this document. For any dated referenced documents, only the dated version applies to this document. For any undated referenced documents, the latest version (including all amendments) applies to this document GB/T18314 Global Positioning System (GPS) Measurement Specification GB/T28588—2012
GB/T35767—2017
GB/T357682017
GB/T35769—2017
CH/T20092010
Technical Specification for Continuously Operating Base Station Network of Global Navigation Satellite System Basic Products of Satellite Navigation Positioning Base Station Network Specification of satellite navigation and positioning base station network service management system Specification of satellite navigation and positioning base station network service specification Global Positioning System Real-time Kinematic Measurement (RTK) Technical Specification CH/T2018-2018 Satellite Navigation and Positioning Base Station Network Test Technical Specification CH8016-1995 Global Positioning System (GPS) Measurement Receiver Calibration Procedure Terms and Definitions
GB/T35769-2017, CH/T2009-2010 and CH/T2018-2018 and the following terms and definitions apply to this document. For ease of use, some terms and definitions in GB/T35769-2017, CH/T2018-2018 and CH/T2009-2010 are repeated below.
System Time Availability
systemtimeavailability
The percentage of time that the system can provide effective navigation and positioning services to users over a period of time. [CH/T2018—2018, Definition 3.3]
User time availability
user time availability
The percentage of time that users obtain system navigation and positioning services and effectively locate in a period of time. [CH/T2018—2018, Definition 3.4]
Space availability
space availability
The percentage of the area where users obtain system navigation and positioning services and effectively locate in the total coverage area of ​​the system, [CH/T2018—2018, Definition 3.5]
Floating point solution
floatsolution
Non-integer solution for integer unknowns of satellite carrier phase observations GB/T39615—2020
Fixed solution
fixedsolution
Integer solution for integer unknowns of satellite carrier phase observations. [CH/T2009—2010, definition 3.9]]
Internally coincident precision
internally coincident precisionThe standard deviation between a measured value and its mean value3.7
Externally coincident precision
externally coincident precisionThe standard deviation between a measured value and a known result3.8
Data availability ratio
data availability ratio
The ratio of the actual number of epochs to the expected number of epochs. 3.9
Cycle slip ratio
cycleslipratio
The ratio of the actual number of epochs to the number of cycle slips.
Satellite navigation and positioning reference station network
reference stations using global navigation satellite systemA system consisting of a number of satellite navigation and positioning reference stations, data centers and data communication networks, used to provide positioning, navigation, location and other services.
[GB/T35769—2017. Definition 3.2]
4 Abbreviations
The following abbreviations apply to this document.
BDS：BeiDou Navigation Satellite System CGCS2000.China Geodetic Coordinate System 2000 GALILEO: Galileo Satellite Navigation System GLONASS: Global Navigation Satellite System GNSS: Global Navigation Satellite System GPS: Global Positioning System SAG
NTRIP: Networked Transport of RTCM via Internet Protocol
RINEX: Receiver Independent Exchange Format RTCM: Radio Technical Commission for Maritimes ervices）RTD：Real-time Differential RTK：Real-time Kinematic TCP/IP：Transmission Control Protocol/Internet Protocol 5Test requirements
The satellite navigation and positioning base station network test shall meet the following requirements: a) Before the test, the satellite navigation and positioning base station network shall be in accordance with GB/T285 88—2012 Technical Requirements Completed; 2
b) Applicable to different needs of national, regional and professional application networks: c
The test should adopt the CGCS2000 national geodetic coordinate system; d)
The test should be conducted once a year;
The test should be entrusted to a third party;
The test should submit a test plan, test report, function test record sheet, and performance test record sheet f)
6 Functional test content and methods
Data security protection function inspection
On-site inspection to see whether the data center has data security measures (firewalls, network gates, security software, etc.). Data forwarding function test
Test whether the data center has the function of forwarding data in real time according to the network address. 6.3 Data storage function test
Test whether the data center can classify and store data according to data format or sampling rate, etc.6.4 Data backup function test
Test whether the system has online hot standby function and whether the data is backed up to different storage devices6.5
System compatibility function test
GB/T39615—2020
Test whether each base station can receive and provide satellite navigation system data such as BDS, GPS, GLONASS, GALILEO, etc. 6.6
Data format compatibility function test
Test whether the service software has the function of parsing, generating and broadcasting RTCM real-time data format; whether the storage data file format configuration option has RINEX format.
Data quality analysis function test
Test whether the service software has the data quality analysis functions of the base station such as data cycle slip ratio and multipath effect. 6.8 Communication protocol function test
Test whether the links of data communication protocols such as NTRIP and TCP/IP established between the data center and the base station data center and the user terminal are connected.
6.9 Automatic networking function test
By disabling and adding some base stations, test whether the service software can realize automatic network reconstruction. 6.10 Automatic service function test
After adopting the operation strategy, test whether it can automatically provide data services to users without manual intervention. 6.11 Real-time navigation and positioning function test
In the system coverage area, connect the user terminal to the system and test whether it can obtain real-time navigation and positioning according to the requirements of GB/T18314.3
GB/T39615-2020
6.12 Data processing function test
Test whether it has the data processing function required by 6.5 of GB/T35768-2017. 6.13 Service management system function test
Test whether it can perform information management, system monitoring, data management, data processing, user management, service management and other operations according to the requirements of GB/T35768-2017.
7 Performance test content and method
7.1 Station network data integrity test
Use the observation data of the base station network for no less than 7 days (the sampling rate is not less than 1Hz), and count the station network data integrity according to the data quality analysis results. The indicators should meet the requirements of Table 1.
7.2 Station cycle slip ratio test
Collect at least 1 day of observation data (sampling rate not less than 1Hz), check and analyze the data, and extract the cycle slip ratio results of each station from the quality inspection report.
Multipath effect test
Collect at least 1 day of observation data (sampling rate not less than 1Hz), check and analyze the data, and extract and count the multipath effect results from the quality inspection report.
7.4 Data transmission delay test
Test the network communication link, communication rate, bit error rate, and data transmission delay between the base station and the data center and the data center and the user. The indicators meet the requirements of 9.2 in GB/T28588-2012. 7.5 Real-time service frequency test
The user-side service frequency is set to the highest service frequency that the system can provide, and log in to the system to check whether it can be positioned normally. 7.6 Network RTK/RTD Accuracy Test
7.6.1 Select test points within the system coverage area that are not less than the number of base station network points. Test points should be selected from known points above Class C and evenly distributed within the coverage area.
7.6.2 The test uses a terminal calibrated in accordance with the requirements of CH8016-1995, sets the working mode to the network RTK/RTD positioning mode, and the terminal connects to the system real-time positioning service. After obtaining valid positioning results, it continuously collects 30 epochs as a group. Each point collects 3 groups independently, and each group needs to be reinitialized.
7.6.3 For each group of test results, the external and internal accuracy are calculated separately. The average value of the 3 groups is used as the real-time positioning accuracy of the test point, and the average value of the real-time positioning accuracy of all test points is used as the system real-time positioning accuracy index. The index should meet the requirements of Table 1. 7.7 System Time Availability Test
After the system operates normally for 1 hour, the system navigation and positioning solution status is recorded through the system log, etc. After the system operates continuously for 72 hours, the time ratio of the system providing normal services is counted. The indicators should meet the requirements of Table 14
7.8 User time availability test
GB/T39615—2020
In the system coverage area, select fixed points, use the network RTK working mode, and conduct continuous 1Hz sampling test. Automatically record the test data and status at the test end. The test period is 3, and each period is tested continuously for more than 24 hours. Record the original positioning results and compare them with the known coordinates. The indicators should meet the requirements of Table 1. 7.9 Space availability test
In the coverage area of ​​the base station network and the area with normal wireless signals, the fixed-point test method can be used to record the RTK and RTD point solution coordinate results. The points that meet the RTK and RTD accuracy indicators are used as the effective values ​​of the space availability test, and the ratio of the total number of measured points is calculated respectively. The indicators should meet the requirements of Table 1. 7.10 User concurrent access test
After the system starts normally, simulate the user through the simulated user end software, and use the user group arithmetic increment method to test, and record the correction number and its broadcast time on the virtual terminal until the total number of users reaches the system license limit. If there is no license limit, the test will be stopped until the system abnormality lasts for 10 minutes. 7.11 Basic product performance test
Use the data processing software of the station network, according to GB/T35768-2017 6.5 requirements to obtain the basic product performance index requirements specified in GB/T35767-2017
Performance index
The satellite navigation and positioning base station network test performance indexes are shown in Table 1. Table 1
Data integrity
Network RTK accuracy
Network RTD accuracy
System availability
Compatibility
Submitted materials
Data integrity
Network RTK internal compliance accuracy
Network RTK external compliance accuracy
Network RTD internal compliance accuracy
Network RTD external compliance accuracy
System time availability
User time availability
Space availability
Satellite system
After the test is completed, the following materials should be submitted: a)
Test plan;
Base station network test performance indicators
≥95%
Plane is less than or equal to 3cm||tt ||Flat surface less than or equal to 5cm
Flat surface less than or equal to 30cm
Flat surface less than or equal to 50cm
Vertical direction less than or equal to 5cm
Vertical direction less than or equal to 10cm
Vertical direction less than or equal to 50cm
Vertical direction less than or equal to 100cm
≥99%
≥95%
≥95%
BDS/GPS/GLONASS/GALILEO
GB/T39615—2020
Function test record sheet (see Appendix A); b)
Performance test record sheet (see Appendix B); Test report (see Appendix C);
Other test materials.
See Table A.1 for the base station network function test record sheet. Table A.1
Tester:
Software model:
Test content
Data security protection function
Data forwarding function
Data storage function
Data backup
Appendix A
(Informative appendix)
Function test record table
Base station network function test record table
Recording person:
Test date:
Software version:
Is it available (with "/\")
With?Not available
Data download portAutomatic data forwarding portOther available?Not available
With?Not available
Base station data
Satellite navigation
System compatibility
Data format
Compatibility
Service software
Virtual terminal
Terminal measurement
Observation Measurement data file
Real-time data stream
Data quality analysis function
Communication protocol
Data center and base station
Data center and terminal
Automatic networking function
Automatic service function
Real-time navigation and positioning function
Data processing function
User management function
BDSGPSGLONASSSGALILEO
BDSGPSGLONASSSGALILEO
BDSGPSGLONASSSGALILEO
BDSGPSGLONASSSGALILEO
RTCM format
RINEX3.03 and above
Cycle hop ratioMultipath effectSignal-to-noise ratioPhase observation noiseIntegrity rateAvailability rateNTRIPTCP/IP
NTRIPTC P/IP
Disable some sites. Are the networking ports automatically added? Are some sites automatically networked? Yes or No? Available? Not available
Available? Not available
Network solution? Available? Not available
Site coordinate solution? Available? Not available
Coordinate conversion? Available? Not available
Product calculation? Available? Not available
Information management system monitoring? Data management
Data processing? User management? Service management
GB/T39615—2020
GB/T39615—2020
Rate by return
Lucky return
(%8 decrease%8) by blood
Lucky return
B.2 Data transmission delay test record table
Data transmission delay test record table see Table B.2 Table B.2
Tester:
Sending data packet size
Recorder:
Base station
IP address
Average value for period 1
Average value for period 2
Average value for period 3
Overall mean
B.3 User time availability test record table
See Table B.3 for the user time availability test record table, Transmission delay test record table
Test date:
Number of packets sentwww.bzxz.net
Data received
Number of packets|| tt||Network delay
3User time availability test record table
Tester:
Period number
Start time
User time availability
Recorder
End time
Number of collected epochs
Test date:
Fixed number of epochs
GB/T39615—2020
Network rate
Fixed ratio1
Tester:
Software model:
Test content
Data security protection function
Data forwarding function
Data storage function
Data backup
Appendix A
(Informative appendix)
Function test record form
Base station network function test record form
Recorder:
Test date:
Software Version:
Is it available (with "/\")
With?Not available
Data download?Automatic data transmission?Forwarding?Other available?Not available
With?Not available
Base station data
Satellite navigation
System compatibility
Data format
Compatibility
Service software
Virtual terminal
Terminal measurement
Observation data According to the file
Real-time data flow
Data quality analysis function
Communication protocol
Data center and base station
Data center and terminal
Automatic networking function
Automatic service function
Real-time navigation and positioning function
Data processing function
User management function
BDSGPSGLONASSSGALILEO
BDSGPSGLONASSSGALILEO
BDSGPSGLONASSSGALILEO
BDSGPSGLONASSSGALILEO
RTCM format
RINEX3.03 and above
Cycle hop ratioMultipath effectSignal-to-noise ratioPhase observation noiseIntegrity rateAvailability rateNTRIPTCP/IP
NTRIPTCP/ IP
Disable some sites. Are the networking ports automatically added? Are some sites automatically networked? Yes or No? Available? Not available
Available? Not available
Network solution? Available? Not available
Site coordinate solution? Available? Not available
Coordinate conversion? Available? Not available
Product calculation? Available? Not available
Information management system monitoring? Data management
Data processing user management? Service management
GB/T39615—2020
GB/T39615—2020
Rate by return
Luckily by thunder return
(%8 decrease by %8) by blood
Luckily by return
B.2 Data transmission delay test record table
Data transmission delay test record table see Table B.2 Table B.2
Tester:
Sending data packet size
Recording person:| |tt||Base station
IP address
Average value for period one
Average value for period two
Average value for period three
Overall mean
B.3 User time availability test record table
See Table B.3 for the user time availability test record table, Transmission delay test record table
Test date:
Number of packets sent
Data received
Number of packets||t t||Network delay
3User time availability test record table
Tester:
Period number
Start time
User time availability
Recorder
End time
Number of collected epochs
Test date:
Fixed number of epochs
GB/T39615—2020
Network rate
Fixed ratio1
Tester:
Software model:
Test content
Data security protection function
Data forwarding function
Data storage function
Data backup
Appendix A
(Informative appendix)
Function test record form
Base station network function test record form
Recorder:
Test date:
Software Version:
Is it available (with "/\")
With?Not available
Data download?Automatic data transmission?Forwarding?Other available?Not available
With?Not available
Base station data
Satellite navigation
System compatibility
Data format
Compatibility
Service software
Virtual terminal
Terminal measurement
Observation data According to the file
Real-time data flow
Data quality analysis function
Communication protocol
Data center and base station
Data center and terminal
Automatic networking function
Automatic service function
Real-time navigation and positioning function
Data processing function
User management function
BDSGPSGLONASSSGALILEO
BDSGPSGLONASSSGALILEO
BDSGPSGLONASSSGALILEO
BDSGPSGLONASSSGALILEO
RTCM format
RINEX3.03 and above
Cycle hop ratioMultipath effectSignal-to-noise ratioPhase observation noiseIntegrity rateAvailability rateNTRIPTCP/IP
NTRIPTCP/ IP
Disable some sites. Are the networking ports automatically added? Are some sites automatically networked? Yes or No? Available? Not available
Available? Not available
Network solution? Available? Not available
Site coordinate solution? Available? Not available
Coordinate conversion? Available? Not available
Product calculation? Available? Not available
Information management system monitoring? Data management
Data processing user management? Service management
GB/T39615—2020
GB/T39615—2020
Rate by return
Luckily by thunder return
(%8 decrease by %8) by blood
Luckily by return
B.2 Data transmission delay test record table
Data transmission delay test record table see Table B.2 Table B.2
Tester:
Sending data packet size
Recording person:| |tt||Base station
IP address
Average value for period one
Average value for period two
Average value for period three
Overall mean
B.3 User time availability test record table
See Table B.3 for the user time availability test record table, Transmission delay test record table
Test date:
Number of packets sent
Data received
Number of packets||t t||Network delay
3User time availability test record table
Tester:
Period number
Start time
User time availability
Recorder
End time
Number of collected epochs
Test date:
Fixed number of epochs
GB/T39615—2020
Network rate
Fixed ratio
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