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BSI 24/30485509 DC 2024

BSI 24/30485509 DC 2024

$24.66

BS EN 16605 Space – Galileo Timing Receiver – Functional and Performance Requirements and associated Tests

Published By Publication Date Number of Pages
BSI 2024 113
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PDF Catalog

PDF Pages PDF Title
9 1 Scope
10 2 Normative references
3 Terms, definitions and acronyms
3.1 Acronyms
14 3.2 Terms and definitions
19 4 Galileo Timing Service
4.1 Introduction to timing receivers and timing references
20 4.2 Galileo Timing Service ā€“ Accuracy and Availability
4.3 Galileo Timing Service ā€“Integrity capability
4.3.1 General
21 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
22 4.3.5 Timing Flags processing
4.3.5.1 Description of the processing
23 4.3.5.2 Timing Flags Definition
4.3.6 Galileo timing receiver Decision Logic
4.3.6.1 General
25 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
27 4.3.7 Time To Alert and Time To Notify
4.3.8 T-RAIM Processing
28 5 Requirements for Galileo timing receivers
5.1 Definitions
5.2 Minimum Equipment Characteristics
30 5.3 Functional Requirements
5.3.1 Constellations Processed
5.3.2 Frequencies Processed
5.3.3 Back-up Modes
5.3.4 Dynamics of the User
31 5.3.5 Time Scales
5.3.6 Processing of Timing Flags and Integrity Requirements
36 5.3.7 T-RAIM Functional Requirements and Consistency Checks
5.3.8 Anti-Jamming Capabilities
5.3.8.1 General
37 5.3.8.2 Nominal RF environment
5.3.8.3 Degraded RF Environment
38 5.3.9 Galileo OS-NMA Processing
5.3.10 Holdover Capabilities
39 5.3.11 Multipath mitigation
5.3.12 Special Configuration and Output Requirements
5.4 Performance Requirements
5.4.1 General
40 5.4.2 Accuracy Requirements
5.4.3 Availability Requirements
41 5.4.4 Integrity Requirements
5.4.4.1 Performance and Integrity Requirements
43 5.4.4.2 Time-To-Alert
5.4.5 T-RAIM Performances and thresholds
5.4.6 Holdover Timeout
44 6 Verification of Galileo timing receivers
6.1 General
6.2 Galileo timing receiver Test Policy
45 6.3 Strategy for Galileo timing receivers Verification
6.3.1 Verification Methods
6.3.2 Galileo timing receivers Verification Strategy
46 6.3.3 Galileo timing receiver Test Suite
51 6.4 Test Environment
6.4.1 General
6.4.2 Record and Replay Test Environment
6.4.2.1 General description
54 6.4.2.2 SDR Record Power Calibration
6.4.2.3 SDR Replay Power Calibration
55 6.5 Antenna conditions definition
6.5.1 Open sky
6.5.2 Obstructed open sky
57 6.5.3 Light indoor
6.6 Error Budgets for the Tests
58 6.7 Traceability Matrix: Requirements vs Verification Method
6.7.1 Traceability
60 6.7.2 Receiver functionalities Verified by Review Method
6.8 Galileo timing receiver tests
6.8.1 Record and Replay test configuration
6.8.1.1 Main hardware and software elements
6.8.1.2 Validation of the laboratory setup
61 6.8.1.3 Preparation of the Galileo timing receiver under test
6.8.1.4 Testing setup for TC-01
62 6.8.1.5 Testing setup for TC-02 to TC-09
63 6.8.1.6 Testing setup for TC-10 and TC-11
65 6.8.1.7 Testing setup for TC-13
66 6.8.2 Calibration of time delays
6.8.3 For the Verification of Galileo timing receiver Functions (TC-01)
6.8.3.1 General
67 6.8.3.2 Scenarios
6.8.3.3 Timing flags processing verification Test
68 6.8.4 GST Service Level 1 (TC-02)
69 6.8.5 GST Service Level 2 (TC-03)
70 6.8.6 GST Service Level 3 (TC-04)
6.8.7 UTC Service Level 1 (TC-05)
71 6.8.8 UTC Service Level 2 (TC-06)
72 6.8.9 UTC Service Level 3 (TC-07)
73 6.8.10 Performances in obstructed environment (TC-08)
74 6.8.11 Performances in light indoor environment (TC-09)
6.8.12 Test on Robustness to Interferences: Nominal Conditions (TC-10)
75 6.8.13 Test on Robustness to Interferences: Degraded Conditions (TC-11)
77 6.8.14 Test on T-RAIM Performances (TC-12)
81 6.8.15 Test on Receiver Noise (TC-13)
83 AnnexĀ A (informative)GNSS Timing Equations
86 AnnexĀ B (informative)Guidelines for Installation and Maintenance
B.1 Antenna, Cabling and Receiver Installation
B.1.1 General
B.1.2 Selecting a GNSS Antenna
87 B.1.3 Locating and Installing the GNSS Antenna
88 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
90 B.1.8 Multipath Mitigation
B.1.9 Other Recommendations
91 B.2 Precise computation of the antenna position
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
92 B.3 Initial Calibration of the 1PPS receiver chain time delays
95 B.4 Periodic re-calibration
96 AnnexĀ C (informative)Record and Replay additional information
C.1 Clock reference sources
99 AnnexĀ D (informative)Timing Flags Definition
102 AnnexĀ E (normative)Provision of Record and Replay files
E.1 Requirements for collecting data for the R&R
E.1.1 Technical documentation
E.1.1.1 Test plan
103 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
E.1.3.1 General
104 E.1.3.2 IQ data format
E.1.3.3 Benchmark GNSS receiver
E.1.4 GNSS constellations simulator
105 E.2 Requirements for validating R&R data
E.2.1 Validation of the field test
E.2.2 Validation of the digitized GNSS signals
E.2.2.1 Analysis of RF signals power
106 E.2.2.2 Analysis of effects on benchmark GNSS receiver
107 AnnexĀ F (informative)Justification of Nominal RFI Environment
108 AnnexĀ G (informative)Validation of Test on Receiver Noise (TC-13)

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BSI 24/30485509 DC 2024
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