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eLibrary > 24/30485509 DC BS EN 16605 Space - Galileo Timing Receiver - Functional and Performance Requirements and associated Tests >

24/30485509 DC BS EN 16605 Space - Galileo Timing Receiver - Functional and Performance Requirements and associated Tests, 2024

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24/30485509 DC BS EN 16605 Space - Galileo Timing Receiver - Functional and Performance Requirements and associated Tests, 2024

41_e_stf (1).pdf [Go to Page]
1 Scope
2 Normative references
3 Terms, definitions and acronyms [Go to Page]
3.1 Acronyms
3.2 Terms and definitions
4 Galileo Timing Service [Go to Page]
4.1 Introduction to timing receivers and timing references
4.2 Galileo Timing Service – Accuracy and Availability
4.3 Galileo Timing Service –Integrity capability [Go to Page]
4.3.1 General
4.3.2 Definition of a Fault-Free Timing solution
4.3.3 Definition of a faulty timing solution
4.3.4 High-Level Architecture of Galileo Timing Service
4.3.5 Timing Flags processing [Go to Page]
4.3.5.1 Description of the processing
4.3.5.2 Timing Flags Definition
4.3.6 Galileo timing receiver Decision Logic [Go to Page]
4.3.6.1 General
4.3.6.2 Conditions to use specific satellites when Switch-on
4.3.6.3 Processing Galileo SIS OS Status Flags and Processing Logic for Galileo timing receivers
4.3.7 Time To Alert and Time To Notify
4.3.8 T-RAIM Processing
5 Requirements for Galileo timing receivers [Go to Page]
5.1 Definitions
5.2 Minimum Equipment Characteristics
5.3 Functional Requirements [Go to Page]
5.3.1 Constellations Processed
5.3.2 Frequencies Processed
5.3.3 Back-up Modes
5.3.4 Dynamics of the User
5.3.5 Time Scales
5.3.6 Processing of Timing Flags and Integrity Requirements
5.3.7 T-RAIM Functional Requirements and Consistency Checks
5.3.8 Anti-Jamming Capabilities [Go to Page]
5.3.8.1 General
5.3.8.2 Nominal RF environment
5.3.8.3 Degraded RF Environment
5.3.9 Galileo OS-NMA Processing
5.3.10 Holdover Capabilities
5.3.11 Multipath mitigation
5.3.12 Special Configuration and Output Requirements
5.4 Performance Requirements [Go to Page]
5.4.1 General
5.4.2 Accuracy Requirements
5.4.3 Availability Requirements
5.4.4 Integrity Requirements [Go to Page]
5.4.4.1 Performance and Integrity Requirements
5.4.4.2 Time-To-Alert
5.4.5 T-RAIM Performances and thresholds
5.4.6 Holdover Timeout
6 Verification of Galileo timing receivers [Go to Page]
6.1 General
6.2 Galileo timing receiver Test Policy
6.3 Strategy for Galileo timing receivers Verification [Go to Page]
6.3.1 Verification Methods
6.3.2 Galileo timing receivers Verification Strategy
6.3.3 Galileo timing receiver Test Suite
6.4 Test Environment [Go to Page]
6.4.1 General
6.4.2 Record and Replay Test Environment [Go to Page]
6.4.2.1 General description
6.4.2.2 SDR Record Power Calibration
6.4.2.3 SDR Replay Power Calibration
6.5 Antenna conditions definition [Go to Page]
6.5.1 Open sky
6.5.2 Obstructed open sky
6.5.3 Light indoor
6.6 Error Budgets for the Tests
6.7 Traceability Matrix: Requirements vs Verification Method [Go to Page]
6.7.1 Traceability
6.7.2 Receiver functionalities Verified by Review Method
6.8 Galileo timing receiver tests [Go to Page]
6.8.1 Record and Replay test configuration [Go to Page]
6.8.1.1 Main hardware and software elements
6.8.1.2 Validation of the laboratory setup
6.8.1.3 Preparation of the Galileo timing receiver under test
6.8.1.4 Testing setup for TC-01
6.8.1.5 Testing setup for TC-02 to TC-09
6.8.1.6 Testing setup for TC-10 and TC-11
6.8.1.7 Testing setup for TC-13
6.8.2 Calibration of time delays
6.8.3 For the Verification of Galileo timing receiver Functions (TC-01) [Go to Page]
6.8.3.1 General
6.8.3.2 Scenarios
6.8.3.3 Timing flags processing verification Test
6.8.4 GST Service Level 1 (TC-02)
6.8.5 GST Service Level 2 (TC-03)
6.8.6 GST Service Level 3 (TC-04)
6.8.7 UTC Service Level 1 (TC-05)
6.8.8 UTC Service Level 2 (TC-06)
6.8.9 UTC Service Level 3 (TC-07)
6.8.10 Performances in obstructed environment (TC-08)
6.8.11 Performances in light indoor environment (TC-09)
6.8.12 Test on Robustness to Interferences: Nominal Conditions (TC-10)
6.8.13 Test on Robustness to Interferences: Degraded Conditions (TC-11)
6.8.14 Test on T-RAIM Performances (TC-12)
6.8.15 Test on Receiver Noise (TC-13)
Annex A (informative)GNSS Timing Equations
Annex B (informative)Guidelines for Installation and Maintenance [Go to Page]
B.1 Antenna, Cabling and Receiver Installation [Go to Page]
B.1.1 General
B.1.2 Selecting a GNSS Antenna
B.1.3 Locating and Installing the GNSS Antenna
B.1.4 Connecting to the Antenna: Cabling
B.1.5 Antenna Installation Verification
B.1.6 Using Ancillary Products
B.1.7 Evaluating Signal Attenuation to validate cable length
B.1.8 Multipath Mitigation
B.1.9 Other Recommendations
B.2 Precise computation of the antenna position [Go to Page]
B.2.1 General
B.2.2 Needed inputs for conducting a PPP to precisely compute the antenna position of the Galileo timing receiver
B.2.3 Available online PPP Services
B.3 Initial Calibration of the 1PPS receiver chain time delays
B.4 Periodic re-calibration
Annex C (informative)Record and Replay additional information [Go to Page]
C.1 Clock reference sources
Annex D (informative)Timing Flags Definition
Annex E (normative)Provision of Record and Replay files [Go to Page]
E.1 Requirements for collecting data for the R&R [Go to Page]
E.1.1 Technical documentation [Go to Page]
E.1.1.1 Test plan
E.1.1.2 Test report
E.1.1.3 Technical documentation on instruments
E.1.1.4 Field test validation document
E.1.2 Human resources
E.1.3 GNSS signals digitalization [Go to Page]
E.1.3.1 General
E.1.3.2 IQ data format
E.1.3.3 Benchmark GNSS receiver
E.1.4 GNSS constellations simulator
E.2 Requirements for validating R&R data [Go to Page]
E.2.1 Validation of the field test
E.2.2 Validation of the digitized GNSS signals [Go to Page]
E.2.2.1 Analysis of RF signals power
E.2.2.2 Analysis of effects on benchmark GNSS receiver
Annex F (informative)Justification of Nominal RFI Environment
Annex G (informative)Validation of Test on Receiver Noise (TC-13) [Go to Page]

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