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BS IEC 61108-6:2023

BS IEC 61108-6:2023

$167.15

Maritime navigation and radiocommunication equipment and systems. Global navigation satellite systems (GNSS) – Navigation with Indian constellation (NavIC)/Indian regional navigation satellite system (IRNSS). Receiver equipment. Performance requirements, methods of testing and required test results

Published By Publication Date Number of Pages
BSI 2023 40
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PDF Catalog

PDF Pages PDF Title
2 undefined
4 CONTENTS
6 FOREWORD
8 1 Scope
2 Normative references
10 3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms
11 4 Minimum performance requirements
4.1 Object
12 4.2 IRNSS/NavIC receiver equipment
4.2.1 Minimum facilities
4.2.2 Configuration
4.2.3 Quality assurance
4.3 Performance of IRNSS/NavIC receiver equipment
4.3.1 General
13 4.3.2 Equipment interfaces
Figures
Figure 1 – Logical interfaces of IRNSS/NavIC receiver
14 4.3.3 Accuracy
4.3.4 Acquisition
15 4.3.5 Protection
4.3.6 Antenna design
Tables
Table 1 – Acquisition time limits
16 4.3.7 Sensitivity and dynamic range
4.3.8 Effects of specific interfering signals
4.3.9 Position update
17 4.3.10 Differential IRNSS/NavIC input
4.3.11 Navigation warnings and status indications
19 4.3.12 Output of COG, SOG and UTC
Table 2 – RAIM integrity status
20 4.3.13 Typical interference conditions
5 Methods of testing and required test results
5.1 Test sites
Table 3 – Accuracy of COG
21 5.2 Test sequence
5.3 Standard test signals
22 5.4 Determination of accuracy
5.5 General requirements and presentation requirements
5.5.1 Normal environmental conditions for tests
5.5.2 General requirements
5.5.3 Presentation requirements
5.6 Receiver performance tests
5.6.1 IRNSS/NavIC receiver equipment
5.6.2 Position output
23 5.6.3 Equipment interfaces
5.6.4 Accuracy
24 5.6.5 Acquisition
25 5.6.6 Protection
5.6.7 Antenna design
5.6.8 Sensitivity and dynamic range
26 5.6.9 Protection from other shipborne transmitters
27 5.6.10 Position update
5.6.11 Differential IRNSS/NavIC input
28 5.6.12 Navigational warnings and status indications
30 5.6.13 Accuracy of COG and SOG
31 5.6.14 Validity of COG and SOG information
5.6.15 Output of UTC
5.7 Tests for typical RF interference conditions
5.7.1 Simulator conditions
5.7.2 Navigation solution accuracy test
32 5.7.3 Re-acquisition test
Table 4 – RF interference value
34 Annex A (normative)Typical IRNSS/NavIC interference environment
A.1 IRNSS/NavIC CW in-band and near-band interference environment
Table A.1 – CW interference thresholds for IRNSS/NavIC L5band receivers in steady-state navigation
Table A.2 – CW interference thresholds for IRNSS/NavIC S bandreceivers in steady‑state navigation
35 A.2 Band-limited noise-like interference
Figure A.1 – CW interference thresholds for IRNSS/NavIC L5 bandreceivers in steady state navigation
Figure A.2 – CW interference thresholds for IRNSS/NavIC S bandreceivers in steady state navigation
36 A.3 Pulsed interference
Figure A.3 – Effect of interference bandwidth on interference thresholds for IRNSS/NavIC receivers (for noise like interference)
Table A.3 – Interference threshold for band-limited noise-like interferenceto IRNSS/NavIC receivers in steady-state navigation
37 A.4 IRNSS/NavIC minimum antenna gain
Table A.4 – Interference thresholds for pulsed interference
Table A.5 – IRNSS/NavIC minimum antenna gain
38 Annex B (normative)Alert management
Table B.1 – Required alerts and their classification
39 Bibliography

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BS IEC 61108-6:2023
$167.15