IEC 62320-3-2015 Maritime navigation and radiocommunication equipment and systems - Automatic identification systems (AIS) - Part 3 Repeater station - Minimum operational and perfo.pdf

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1、 IEC 62320-3 Edition 1.0 2015-01 INTERNATIONAL STANDARD Maritime navigation and radiocommunication equipment and systems Automatic identification system (AIS) Part 3: Repeater stations Minimum operational and performance requirements Methods of test and required test results IEC 62320-3:2015-01(en)

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11、-3 Edition 1.0 2015-01 INTERNATIONAL STANDARD Maritime navigation and radiocommunication equipment and systems Automatic identification system (AIS) Part 3: Repeater stations Minimum operational and performance requirements Methods of test and required test results INTERNATIONAL ELECTROTECHNICAL COM

12、MISSION ICS 47.020.70 ISBN 978-2-8322-2237-9 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colour inside 2 IEC 62320-3:2015 IEC 2015 CONTENTS FOREWORD . 6 INTRODUCTION . 8 1 Scope 9 2 Normat

13、ive references 9 3 Symbols and abbreviations 10 4 Functional requirements for a repeater station . 11 4.1 General . 11 Types of repeater stations . 11 4.1.1Repeating operation 11 4.1.2Synchronisation . 12 4.1.3Access to the VDL . 12 4.1.4Configuration . 13 4.1.5 4.2 Functional block diagram of an AI

14、S repeater station . 13 4.3 Repeating rules. 14 General repeating rules . 14 4.3.1Repeater station use of repeat indicator 15 4.3.2Duplicate message filtering 15 4.3.3Content filtering . 16 4.3.4Reporting interval filtering 19 4.3.5Channel filtering 19 4.3.6Filtering procedure 19 4.3.7Message proces

15、sing 21 4.3.8Overload protection . 21 4.3.9Slot selection using RSSI RSSI measurement 22 4.3.10 4.4 Message scheduling . 22 Station report . 22 4.4.1Repeater station identification message structure 23 4.4.2Broadcast active AIS-SART message 24 4.4.3Configuration parameters 24 4.4.4 4.5 Repeater stat

16、ion input/output sentence formatters 29 5 Performance requirements. 30 5.1 Cyclic redundancy check. 30 5.2 Physical layer requirement 30 Transmitter requirements . 30 5.2.1Receiver requirements . 34 5.2.2Power consumption . 34 5.2.3Environmental requirements 35 5.2.4 5.3 Link layer requirements . 35

17、 6 Functional tests . 35 6.1 Configuration tests 35 Factory default settings . 35 6.1.1Standard test set-up 36 6.1.2Configuration via VDL 37 6.1.3 6.2 Basic functional tests 38 Basic repetition test . 38 6.2.1Power setting . 38 6.2.2IEC 62320-3:2015 IEC 2015 3 Repeat indicator handling 39 6.2.3Synch

18、ronisation jitter . 40 6.2.4 6.3 VDL access. 41 RATDMA . 41 6.3.1FATDMA access 44 6.3.2ITDMA access . 44 6.3.3 6.4 Repetition rates 45 Downsampling . 45 6.4.1Fixed repetition interval . 46 6.4.2Maximum VDL load 46 6.4.3Maximum transmissions per second 47 6.4.4Age of time stamp 47 6.4.5 6.5 Filtering

19、 48 Duplicate filtering . 48 6.5.1Channel filtering 48 6.5.2Position filtering . 49 6.5.3Message type filtering 51 6.5.4Message content filtering . 51 6.5.5AIS-SART filtering . 56 6.5.6 6.6 Repeater station identification message 56 Purpose . 56 6.6.1Method of measurement 56 6.6.2Required results 57

20、 6.6.3 7 Test conditions 57 7.1 Normal and extreme test conditions 57 Normal test conditions . 57 7.1.1Extreme test conditions . 57 7.1.2 7.2 Additional test arrangements. 57 Arrangements for test signals applied to the receiver input 57 7.2.1Encoder for receiver measurements 58 7.2.2Waiver for rece

21、ivers . 58 7.2.3Impedance . 58 7.2.4Artificial antenna (dummy load) . 58 7.2.5Facilities for access . 58 7.2.6Modes of operation of the transmitter. 58 7.2.7 7.3 Measurement uncertainties . 58 7.4 Test signals 59 Standard test signal number 1 . 59 7.4.1Standard test signal number 2 . 59 7.4.2Standar

22、d test signal number 3 . 59 7.4.3Standard test signal number 4 . 59 7.4.4 8 Physical radio tests . 60 8.1 Transceiver protection test 60 Purpose . 60 8.1.1Method of measurement 60 8.1.2Required results 61 8.1.3 8.2 TDMA transmitter 61 General . 61 8.2.1Frequency error . 61 8.2.2 4 IEC 62320-3:2015 I

23、EC 2015 Carrier power . 61 8.2.3Modulation spectrum slotted transmission 62 8.2.4Transmitter test sequence and modulation accuracy verification 63 8.2.5Transmitter output power versus time function . 64 8.2.6Intermodulation attenuation (Type 1 only) 66 8.2.7 8.3 TDMA receivers 67 Sensitivity 67 8.3.

24、1Error behaviour at high input levels 68 8.3.2Co-channel rejection 68 8.3.3Adjacent channel selectivity . 69 8.3.4Spurious response rejection 70 8.3.5Intermodulation response rejection 72 8.3.6Blocking or desensitisation 73 8.3.7Conducted spurious emissions at the antenna . 74 8.3.8 Annex A (normati

25、ve) Configuration structures 75 A.1 General . 75 A.2 PI sentences for repeater stations . 77 A.2.1 RFS Repeater station FATDMA slots 77 A.2.2 RMF Repeater station MMSI filter . 79 A.2.3 Area configuration . 79 A.3 Configuration via VDL using Message 26 83 Annex B (informative) Test area arrangement

26、103 Bibliography 104 Figure 1 Functional block diagram of an AIS repeater station . 14 Figure 2 Power versus time characteristics 32 Figure 3 Format for repeating four-packet cluster . 60 Figure 4 Measurement arrangement 61 Figure 5 Measurement arrangement 62 Figure 6 Modulation spectrum for slotted

27、 transmission . 63 Figure 7 Measurement arrangement 63 Figure 8 Power versus time characteristics 65 Figure 9 Measurement arrangement 66 Figure 10 Measurement arrangement . 67 Figure 11 Measurement arrangement . 68 Figure 12 Measurement arrangement . 68 Figure 13 Measurement arrangement . 69 Figure

28、14 SINAD or PER/BER measuring equipment . 71 Figure 15 Measurement arrangement . 72 Figure 16 Measurement arrangement . 73 Figure B.1 Test area arrangement 103 Table 1 SOTDMA communication state of received station 12 Table 2 ITDMA Communication state of received station 13 Table 3 ITDMA communicati

29、on state of received station with rescheduling 13 Table 4 Duplicate message filtering parameters . 16 Table 5 Repeater station behaviour for message repeat . 17 IEC 62320-3:2015 IEC 2015 5 Table 6 Contents of Message 26 used for repeater station identification 23 Table 7 Alarm status definition for

30、Table 6 . 24 Table 8 Message 8 structure with AIS-SART related content 24 Table 9 Configurable parameters . 25 Table 10 Repetition parameters . 26 Table 11 Area related configuration parameters . 28 Table 12 Repeater station input/output sentence formatters . 30 Table 13 Transmitter parameters . 31

31、Table 14 Power versus time characteristics for Figure 2 32 Table 15 Required parameter settings for a repeater station 33 Table 16 Required settings of physical layer constants 33 Table 17 Modulation parameters of the physical layer of the repeater station . 33 Table 18 Required receiver characteris

32、tics 34 Table 19 Factory default values . 35 Table 20 Standard test set-up 36 Table 21 Test area of standard test set-up . 37 Table 22 Content of first two packets . 60 Table 23 Fixed PRS data derived from Recommendation ITU-T O.153 . 60 Table 24 Power versus time characteristics . 65 Table 25 Frequ

33、encies for intermodulation tests 73 Table A.1 Basic system parameters . 76 Table A.2 General repetition parameters 77 Table A.3 Basic structure of Message 26 . 84 Table A.4 Message 26 repeater command IDs . 84 Table A.5 EPV configuration 85 Table A.6 EPV query 86 Table A.7 Property identifiers for u

34、se with EPV Basic system parameters . 87 Table A.8 Property identifiers for use with EPV General repetition parameters 88 Table A.9 AES key configuration 89 Table A.10 RFS configuration 90 Table A.11 RFS query 91 Table A.12 RMF configuration 92 Table A.13 RMF query . 93 Table A.14 RA1 configuration

35、94 Table A.15 RA1 query 95 Table A.16 RA2 configuration 96 Table A.17 RA2 query 98 Table A.18 RA3 configuration 99 Table A.19 RA3 query 100 Table A.20 RA4 configuration 101 Table A.21 RA4 query 102 6 IEC 62320-3:2015 IEC 2015 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MARITIME NAVIGATION AND RADIOC

36、OMMUNICATION EQUIPMENT AND SYSTEMS AUTOMATIC IDENTIFICATION SYSTEM (AIS) Part 3: Repeater stations Minimum operational and performance requirements Methods of test and required test results FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardizatio

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47、eld responsible for identifying any or all such patent rights. International Standard IEC 62320-3 has been prepared by IEC technical committee 80: Maritime navigation and radiocommunication equipment and systems. The text of this standard is based on the following documents: FDIS Report on voting 80

48、/744/FDIS 80/752/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. IEC 62320-3:2015 IEC 2015 7 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 623

49、20 series, published under the general title, Maritime navigation and radiocommunication equipment and systems Automatic identification system (AIS), can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to