ITU-R M (2010/04) !" # $ % "& '( ) # * "&) &# +, (VHF) # *. # /)0 12 !! " #

Transcription

1 ITU-R M.7-4 (00/04)!" # $ % "& '( ) # * "&) &# +, (VHF) # *. # /)0!! " # M

2 ITU-R M.7-4 ii.. (IPR) (ITU-T/ITU-R/ISO/IEC).ITU-R ( ) () () BO BR BS BT F M P RA S RS SA SF SM SNG TF V :.ITU-R 00 ITU 00..(ITU)

3 ITU-R M.7-4 * ITU-R M.7-4 (VHF) ( ) (ITU-R /5 (AIS) ).(VHF) AIS (IMO) ( AIS ( (SOTDMA) ( ( (VTS) ( (TDMA) ( AIS AIS (IALA) ( AIS (ICAO).(CIRM) AIS AIS (IALA) (IMO) (IEC) *

4 ITU-R M AIS (IMO). IALA AIS 4 TDMA AIS (VHF)..... TDMA AIS SOTDMA AIS VDL AIS... A... :(IMO) AIS B... :(IMO) AIS SOTDMA "SO" B -.7 CSTDMA "CS" B - 9 AIS (VDL ) AIS B 4A 5

5 ITU-R M = yyyy 99 0 (AIS-SART = 4 xx ) ) 970xxyyyy AIS ( : 4 SART ACTIVE SART TEST : : AIS VDL... 9.( ) (MMSI) ITU-R M.585. MMSI AIS ITU-R M.080. AIS 4 A.. B.4.4 (RI) : :. :. :

6 ITU-R M A () () 0 () 0 () / () ) ( () ) ().(... -.(IMO) AIS AIS -. A A () () () () () 0 () "SO" B "SO" B 4 "SO" B "SO" B "CS" B "CS" B (4) ( ) () AIS 4.(... ) ( 4... ).(... ) /. 0 "CS" B. () () () (4) (VHF) AIS.4 ITU-R M khz 5 5

7 5 ITU-R M.7-4 AIS. VHF.AIS 8.(VHF). TDMA AIS AIS 7 ) FATDMA ITDMA RATDMA SOTDMA.(CSTDMA ( ) ) ( ) AIS 4 AIS..(OSI) :( A (LME) (DLS) (MAC) B LME DLS MAC ARx A Tx A/B B Rx: Tx: 7-0

8 AIS ITU-R M.7-4 AIS : (LME)....8 AIS AIS (DLS) AIS FCS AIS FCS (VDL) VHF (MAC).... (TDMA) NRZI GMSK NRZI

9 7 ITU-R M.7-4,05 5,975, ,5~ 0,5~ 0,5~,5 5,05 5,975, ,4~ 0,5~ 0,5~ (MHz) () ( 8 ) () (khz) ( 8 ) ) () (087) ( ) AIS ) () (088) ( ) AIS (bit/s) () BT BT (W) (MHz) (.. (MHz) (...4 ITU-R M.084 PH.RFR PH.CHS PH.AIS PH.AIS PH.BR PH.TS PH.TXBT PH.RXBT PH.MI PH.TXP ().. 4 NRZI GMSK/FM PH.DE PH.FEC PH.IL PH.BS PH.MOD.. :GMSK/FM. :NRZI. VHF DSC 0 AIS AIS TDMA..4 TDMA TDMA

10 ITU-R M TDMA db,5 ± Hz 500 ± khz 0± > Δf c dbc 5- khz,5 ± > Δf c > khz 5± dbc , Hz 400 > Hz 480± Hz 40± Hz 75± 740 Hz 40± 400 GHz khz 9 dbm - GHz 4 GHz dbm db 40 ( ) T E T 0 Pss ( ) T B Pss db 50- Pss. Pss db 50- db -,5+ db -,5+ Pss db -,5+ Pss db 50- (ms) 0 0,5-0 0,5 0,8 4,7 5,04, T 0 T A T B T B T B ( ) ( ) T E T F T G

11 9 ITU-R M TDMA 07 dbm 77 dbm % 7 dbm 0% 70 db 0% 0 db 0% 70 db 0% 74 db 57 dbm (9 khz to GHz) 47 dbm ( GHz to 4 GHz) 0% 8 db.(gmsk/fm). GMSK. ( ) BT.0,5 0,4 NRZI GMSK GMSK BT.(VHF) GMSK. ( ) ,5.. GMSK. Hz 500± VHF.. /.ppm 50± bit/s () 4.NRZI (00...) 5.

12 (0) ITU-R M NRZI RF. +.5 db P ss db db 50 db T 0 T B T B T E T F T A T G CRC.(8 ) ms

13 ITU-R M (LME) AIS.. ( )... /.(..4 ).db,5±.w,5 W AIS...VHF (MAC) : MAC. TDMA TDMA. TDMA (ITDMA) TDMA (..7.. ) SOTDMA.(4 ) (..7.. ). TDMA :TDMA 8 / / ( ) ( ) MAC.SyncBaseRate MAC.SyncMobileRate...

14 ITU-R M.7-4 UTC UTC.... UTC UTC... UTC. UTC. UTC. UTC ( )... UTC. 40 (5) () SOTDMA slot time-out. 40.SOTDMA (7). " " (.4... )..UTC (.4... ).. MMSI 4... UTC ) " ".s 40.(ITDMA..7.. SOTDMA MMSI. "" UTC

15 ITU-R M.7-4 T5.(8 T ).FCS.(8 ) T5 T Ts Slot_Phase_Synchronization_Timer... SOTDMA slot time-out..sotdma () (4) () ( ) -... / MAC.SyncBaseRate (MMSI) MAC.SyncMobileRate. 0 ( ) MAC.SyncBaseRate ()... ( ) ().MAC.SyncMobileRate.

16 ITU-R M (4 ) UTC = UTC.4....UTC UTC.(... ) UTC UTC UTC ( UTC ) UTC : UTC - - ( )

17 5 ITU-R M () ) ( 0 UTC UTC OR UTC UTC Base station 4 Base station Mobile station 5 ( : 0 0.(... ) UTC = 0.(... ) UTC =.(... ) = ) =.

18 ITU-R M.7-4 MMSI.. : ( (... ) UTC = 0.(... ) UTC =.(... ) = ) = : RF.( ) 5....()..5 5 RF RF power Slot start Slot start 00% 80% 7-05

19 7 ITU-R M :. : -. (... ) : - : - ) : - (.4.4 : -.(.4.4 ) (DLS) : : DLS DLS MAC.5....(.4.4 ) ISO/IEC 09 HDLC.( ) (I ) FCS ( s) ) HDLC.('s).('s).(

20 ITU-R M :... FCS VHF..() 5 HDLC... 4.(00000 ).(7 ) NRZI. 7 ( a) Unmodified bit pattern NRZI (.DLS.HDLC.00 (7E h ) : 8 HDLC..( s)

21 9 ITU-R M.7-4 FCS... (CRC) FCS.CRC CRC.99 ISO/IEC 09.(7 ) CRC : ( ) : - : - : - : % (NM) 0, TDMA µs 04± ±.µs ±

22 ITU-R M : T TS T 0 (7Eh) HDLC HDLC (7Eh) HDLC CRC 0....( ) 8. RF RF ( FCS ). AIS... CRC...AIS (LME). MAC DLS - LME.. :..(FATDMA) TDMA (RATDMA) TDMA ITDMA SOTDMA. SOTDMA (. ) TDMA

23 ITU-R M ) (SI)..(0.(.4.4 ) AIS A. (... ). AIS B "SO" 4 8..(.. )..(.. ) (.4.4 ) SI. SI : E E F F F F F F. 4.

24 ITU-R M RF FCS A 00% 80% T0 T T Ts T T4 T5 (ms) T TS B T0 T RF. RF.( ) (UTC).. RF. (ms) 0,000 0,8,000, 4,7 4,7 T +,000,7 (ms) T(n) T0 T TS T T T s T T4 T5 A AIS. 7-08

25 ITU-R M.7-4..(.4.4. )..4.4 " " "". ).( : SI 0. ( ( ( SI (FREE)

26 ITU-R M /.. : ).(..... (5 ).... TDMA...TDMA. 4...TDMA ITDMA - TDMA.4.. : ITDMA. ITDMA. : ITDMA ITDMA..4.. SOTDMA ITDMA. ITDMA.RATDMA

27 5 ITU-R M.7-4.RATDMA.ITDMA.ITDMA SOTDMA ITDMA ITDMA ITDMA..( ).ITDMA. ITDMA. ITDMA..ITDMA ITDMA = True 0 = False. ITDMA TRUE ( ) FALSE. RATDMA - TDMA LME.ITINC LME.ITSL LME.IKTP.4... RATDMA..(4 RATDMA..4.. ) RATDMA.RATDMA AIS.RATDMA.(FIFO) RATDMA 0 (LME.RTP) (... ) LME.RTP LME.RTP (LME.RTP).00 LME.RTP.. (LME.RTP)

28 ITU-R M RATDMA. 4.. LME.RTA LME.RTCSC LME.RTCSC 4 > LME.RTA + LME.RTCSC. LME.RTES 4 RATDMA..4...RATDMA LME.RTPS 0. ) 4 -.( (SI).. LME.RTPRI (..4 ).LME.RTPS LME.RTP.00/LME.RTCSC LME.RTPS 4 LME.RTCSC - LME.RTPS. (00/4) 5. LME.RTP..0.LME.RTPI LME.RTP LME.RTPI (00 LME.RTP)/LME.RTCSC LME.RTCSC LME.RTES LME.RTPRI LME.RTPS LME.RTP LME.RTP LME.RTA LME.RTPI

29 7 ITU-R M.7-4 FATDMA - TDMA.4... FATDMA FATDMA. FATDMA FATDMA (0 ) FATDMA..FATDMA (4 ) FATDMA 0 FATDMA.(MMSI) FATDMA (FATDMA ) AIS..(4 ) (0 ). FATDMA FATDMA.RATDMA FATDMA 0.FATDMA FATDMA. FATDMA ( ).. LME.FTST LME.FTI LME.FTBS SOTDMA - TDMA ) SOTDMA.(8 4 SOTDMA..

30 ITU-R M SOTDMA SOTDMA SOTDMA SOTDMA NSS (Rr) (B) NSS (B A) : NI NSS NSS B = NSS A + NI NS NSS : NS NS (0 n < Rr) NS = NSS + (n x NI ) (B A) :NI NS A = NSS A + (n NI 0 n < 0,5 Rr : NS B = NSS A + NI + (n + NI) 0 n < 0,5 Rr : 5 75 () : NI NI = 50/Rr 0 (4) () (). ( RI ) Rr = 0/RI Rr 0, NI 0, NI SI. : SI NS (0, NI )} SI = {NS (0, NI ) SI

31 9 ITU-R M () SOTDMA SOTDMA NTS TMO_MIN T MO_MAX 45 7,5.SOTDMA.8.8.ITDMA 4 SOTDMA 4 SOTDMA 0 () () () (4) SOTDMA

32 ITU-R M A NSS A NTS NS A NTS NS, NTS A NTS NS A NI NI NI SI SI SI SI NI NTS NSS B NS B NTS NS, NTS B NTS NS B Start SI LOW SI (example) HIGH NI NSS A NS A SI SI LOW SI HIGH NTS SI SI (= 50/Rr) ( ) (=NSS A + (n x x NI), 0 n < (0,5 x Rr) (=0, x NI) (=NS A 0, x NI) (=NS A + 0, x NI) ) :( ) (SI NSS B = NSS A + NI (B NTS ). -. CC NS CC = NSS CC - B Start NI NI NI SI SI SI SI NI (= 50/ Rr) NSSB ( ) NS B (= NSSB + ( n NI), 0 n < 0.5 Rr) SI (= 0. NI) SI LOW (= NSB 0. NI) SI HIGH (= NSB + 0. NI) NTS SI ) 7-0

33 ITU-R M Initialization phase Monitor VHFdata link No Yes 7- (VHF)..5.. TDMA...TDMA ( ) A.

34 ITU-R M.7-4 Select NSS NSS A for channel A A and NSS B B for NSS channel B B NSS B = NSS A + NI NI A Select NTS NTS No Yes Wait NTSfor NTS No At NTS NTS? Yes First frame phase 7- (NSS) NI NSS.NSS NS. (NTS) NTS TMO_MIN.SI. TMO_MAX.NTS. SOTDMA NTS NTS..5.. NTS..5.. NTS

35 ITU-R M ( ) ITDMA ( ) First frame phase Set offset to zero Yes One frame? No Select NTS next NS NS and NTS Add offset NTS to NTS to this transmission Offset is zero? Yes No Wait for NTS Continuous operation phase NTS NS..5.. (Rr n ) SOTDMA. NTS. NTS.SI NS NS

36 ITU-R M ITDMA ITDMA NTS NTS (4 ) Continuous operation phase 4 Wait for NTS Decrement slot time-out No Set slot offset to zero Yes Calculate new NTS NTS Calculate offset to new NTS NTS Insert new slot time-out and offset into message 7-4

37 5 ITU-R M.7-4 NTS SOTDMA NTS..SOTDMA NTS. NS SI : (slot offset) NTS NTS. TMO_MAX (slot offset = NTS new NTS current + 50) TOM_MIN NTS..( ) SOTDMA SOTDMA NTS (5 )... SOTDMA ITDMA NSS NS.. SI NI.. NI..NSS.

38 ITU-R M.7-4. SI..TRUE ITDMA. 5 Change report rate phase Wait for next transmit slot No Yes NSS Set NSS equal to NS NS Scan SInext SI Allocate new slot No Transmit slot available? Make new slot ITDMA Yes NSS? Yes Done No Wait SI for next SI No Yes Set time-out to zero No SI Yes Wait for transmit slot No Yes 7-5

39 7 ITU-R M.7-4 SI SI...SI SI... B "SO"." " A.. A AIS.. A AIS. A. ITDMA (5.4 ) SI

40 . 7 ITU-R M SOTDMA NSS NI ITDMA.(.5.. ). NSS 7... MSG ID Preamble Start flag Data FCS End flag Buffer 7-.. ( 8 VHF.99 ISO/IEC 09.(. ) NRZI (.. )..

41 9 ITU-R M.7-4 : T D I M N 0 :7.. P P P P4 P5 Bit order M----L-- M LML000 Symbol TTTTTTDI MMMMMMMM MMMMMMMM MMMMMMMM MMMNN000 Byte order 4 5 :( ) VHF Bit order --L----M M LML-- Symbol IDTTTTTT MMMMMMMM MMMMMMMM MMMMMMMM 000NNMMM Byte order (MSG ID).7.. SOTDMA.7.. SOTDMA.7 7 User ID Communication state MSG ID Preamble Start flag FCS End flag Buffer 7-7

42 . 0 MMSI ITU-R M ( ) MMSI ( ) SOTDMA..7.. : SOTDMA -. - :8 SOTDMA 8 (... ) UTC (... ) UTC (... ) ( ) ( ) SOTDMA..7...( ) ( ).( 49 0 ) UTC ) 9 (-0)..(MSB 8 ) 8 (59-0).(MSB. 0.. UTC

43 4 ITU-R M.7-4 ITDMA ITDMA : 8 MSG FCS. 0 MMSI.( ) MMSI ( ) ITDMA..7.. : ITDMA -. - :0 7-8 ITDMA 0 (... ) UTC (... ) UTC (... ) ( ) ( ) 0 0

44 ITU-R M () 0. = 0 = = = = = = = = = = 7 RATDMA 7 5 = TRUE ( ). ITDMA RATDMA RATDMA : RATDMA (..4.. ) FATDMA FATDMA. FATDMA.(8. )..4 :

45 4 ITU-R M.7-4. (4.. )..4 AIS 8 :.AIS (087) (MHz,975 87B ) AIS -. (088) (MHz,05 88B ) AIS -. AIS AIS ( ) : (TDMA ) TDMA (DSC ) (DSC) (ENC) ECDIS.IEC /. DSC telecommand TDMA 0 ).(Presentation Interface. ( DSC )..4 AIS.TDMA /..4..AIS AIS... AIS AIS..4 ITU-R M.084

46 ITU-R M : AIS AIS. -.AIS AIS -.RF -..4 ITU-R M.084 khz (WGS-84) (Mercator) ( ). ( ).(khz 5 ). / : : : :/ :. (DSC TDMA ) 5..4 AIS AIS.(8 7 ) AIS AIS....4 AIS.( ).. TDMA.

47 45 ITU-R M AIS FIGURE A B A B C D C D AIS () DSC TDMA.( ).8..4 (Presentation Interface)... ) AIS.(

48 ITU-R M : AIS AIS.5..4 AIS. DSC telecommand AIS DSC telecommand..... AIS AIS 9..4 AIS.AIS AIS AIS.

49 47 ITU-R M.7-4.(VDL) : GNSS - : () :( ).. :( ).. :( ) FIFO ( ) Rr. Rr.(8. ) (.. )..(.5.. ) VDL.SOTDMA. ITDMA A ( )."SO" B ( ).(SOG).5.. (Rr). () Rr

50 ITU-R M ( A ) s 0 (HDG).(Rr) HDG Rr. º5 º5. SOTDMA ITDMA (..4.. ) 50.(5.5.. ) RATDMA SOTDMA º5 Rr.s 0. : ( ) - ( ) -. - ( A )...4 ( ).(SOG ).. SOG (Rr).5 (). (Rr)..4. A AIS.. A AIS.

51 49 ITU-R M (... ) () ( - ) : ( ).(.. ) () AVAILABLE (.. ) FREE :. FREE () AVAILABLE :. () AVAILABLE :. () UNAVAILABLE FREE :4. () UNAVAILABLE () AVAILABLE :5 (4 FATDMA) 0 (ITDMA (4 FATDMA) SOTDMA) -. Available 0 - Unavailable () ()

52 ITU-R M A SI F F F F T T D F X X X B B F T D E F T F B F I F F 7- SI.A SI :B A ( ) ( ) 0 (). :X ) :( No. : No. No. 5 No. No. No. 4 No. 7 No :F :I :E :B :T :D : : No.9 No.0 No.. No.

53 5 ITU-R M = AIS.VDL A A AIS. FATDMA (..4 (4.4.4 : ) : - ( ) - ) () - VDL - GNSS -

54 AIS ITU-R M : = /...4. ( N A N A ) ( ) MMSI.. VDL " " 7 " ". (+) ITU-R M.084..

55 5 ITU-R M.7-4..( --) -.. () :..() () -.( ) - () : ( ) (.4.4 )....(.4.4 ) VDL 7.4 ).. (....5 (.. )

56 . ITU-R M : AIS ( ) (5) AIS RATDMA (... )

57 55 ITU-R M ). 4..( ). (....VDL..5.. VDL.

58 ITU-R M Start Addressed message on presentation interface OK OK Use default channel selection No Destination ID found in user list? Yes Use channel where destination ID was last received VDL Transmit on VDL Wait for 7 Message 7 or Message No 7 Received Message 7 or Message? Yes Return acknowledgement on presentation interface No Maximum retry expired? Yes Return negative acknowledgement on presentation interface End ( MMSI ) ( MMSI )..5

59 57 ITU-R M AIS.IEC AIS AIS ( A ) AIS..AIS DSC DSC AIS. DSC.. DSC.70 DSC A VTS DSC AIS. AIS.4 ITU-R M (5 ITU-R M.85- ).. ( ) 8 7.TDMA.W,5 W 0 0 0,075 DSC.TDMA 00..ITU-R M.8 AIS VTS AIS / ms ITU-R M.084 ITU-R M.85 ITU-R M. 54 ITU-R M.49

60 ITU-R M AIS. ( ) DSC.ITU-R M.85 5.ITU-R M AIS (). 8 khz AIS RF AIS.ITU-R M.85. DSC..( 5).(. ) 4 4. A.IEC. :.VDL AIS VDL /

61 59 ITU-R M AIS. AIS. AIS - : 4.4.Inmarsat-C AIS - Inmarsat-C IEC -. 5 AIS - Inmarsat-C 7-5 AIS AIS. AIS AIS AIS AIS..AIS.km 000

62 AIS ITU-R M AIS = = ( ) = (/) 87 = = (ms ) CRC AIS.7 AIS AIS 8 AIS 8. A AIS AIS ) AIS AIS AIS A. (AIS AIS.. AIS... AIS.RATDMA AIS AIS VDL. AIS AIS VDL AIS.( AIS ) B ( AIS ) A. AIS RATDMA AIS VDL AIS A AIS AIS 4 A AIS.4 AIS.....

63 ITU-R M.7-4. AIS 4.. AIS.( AIS ) 5. AIS. AIS.AIS.8. (AI). : ) AIS (. : MID (AI = DAC + FI) 0 (FI) (DAC) - -.( )... : DAC (9- = DAC) - (0 < DAC) -. ( = DAC) - 9- DAC. MID DAC. DAC.

64 ITU-R M.7-4 FI. 4 DAC.DAC 4 AIS 4 -.( ) OSI - ) 7 ( ) ( ) 5 -. (. (AI).AI.(IFM) (IAI). (RFM) (RAI) AI (IFM)..( ) :....() () 0.(MID) 000 DAC.(DAC) ( 0) (0 = DAC).... ( = DAC).( )..

65 ITU-R M.7-4 () DAC () DAC = (.5 ASCII IFM (.5 ) IFM = IFM (.5 ) = IFM (4.5 ) ) = IFM (5.5 ) = IFM to to VHF ) DAC - : ( ) (AI) -. - : - ) - ( (FI) - (AI)

66 ITU-R M (FM) : - ( ) 8 ( ) :(5 AIS ) / :(4 AIS ) ( 4) = UTC = : UTC - ( 4) = UTC = 0 - : UTC - ( 5) = UTC = 0 - : UTC - ( 5) = UTC = 4-0 : UTC - ( ) = UTC = : UTC -.( ) = UTC = : UTC -.( AIS ) ASCII "acknowledge required flag" ASCII :IFM 0.5 AIS IFM 0.8

67 5 ITU-R M.7-4. " "..(... 0)...4 = 4. = = MMSI MMSI -0 : = = = 0 = DAC IFM DAC = 0 0 = FI = = 0 IFM.8 44 ASCII ) :.("@"

68 ITU-R M IFM = = 0-0 MMSI = 0 = DAC 0 DAC = 0 0 = FI = = 0 IFM.8 44 ASCII ) 9 5 :.("@" ASCII..8 ASCII

69 7 ITU-R M.7-4. ( ) IFM :IFM = = 0-0 MMSI MMSI 0 = 0 : = = = 0 = DAC 0 DAC = 0 = FI RAI IAI 0 DAC FI () FI. 4 8 ( :IFM.5 ) IFM. DAC. DAC. IFM = = 0-0 MMSI..5-0 MMSI = 0 : = =. 0 0

70 ITU-R M () = 0 DAC 0000 = 0 = FI RAI IAI 0 DAC 0 = DAC (IFM ) :IFM ( ) IFM 4. DAC....4 = 9. = = MMSI MMSI -0 : = = = 0 = DAC DAC = 4 0 = FI RAI IAI 0 DAC FI FI :.FI... FI FI 0 () FI = 0. FI = :. 8 5 FI

71 9 ITU-R M.7-4 :IFM IFM 5. AIS IFM 5. PI. " " AIS = = 0-0 = 0 MMSI MMSI : = =. = DAC DAC 0000 = 5 0 FI 0 FM DAC ( ) = 0 FM = 047- AI = AI = = = = = = FM FI AI AI

72 ITU-R M ( ).(PI) VDL 0... : () A B VDL A VDL B PI PI VDL VDL PI PI () 7-0 :. () () 7 VDL A VDL B PI PI VDL VDL PI PI () 7-7

73 7 ITU-R M.7-4. VDL A : () () 8 VDL A VDL B PI PI VDL VDL PI PI () () VDL B VDL A : 9 () () VDL A VDL B PI PI VDL VDL PI PI () () (4) VDL-ACK VDL 0 A VDL B :4 () () (5) (5) VDL A VDL B PI PI VDL VDL PI PI () () (5) (4) 7-0

74 ITU-R M VDL B :5 () () () () (5) (5) VDL A VDL B PI PI VDL VDL PI PI () () (5) () (4) OK VDL A : VDL A VDL B PI VDL VDL PI PI PI (7) 7- VDL B VDL A. :7 (0) (0) (9) (9) VDL A VDL B PI VDL VDL PI PI PI (0) (7) (9) (8) 7-

75 7 ITU-R M.7-4. VDL-ACK. VDL B ( ) ABM VDL B.A (OK) PI-ACK VDL A :8 :9 :0 4 () () VDL A VDL B PI VDL VDL PI PI PI () () 7-4 VDL B VDL A. :.VDL-ACK VDL A :.(FAIL) PI-ACK 7 CSTDMA B AIS (CSTDMA) TDMA B AIS AIS CS B CSTDMA. CS B CS B. CS B.. CS B AIS AIS A CS B AIS AIS AIS B CS B AIS.(VHF).(VHF) AIS...

76 ITU-R M VDL " " CS B AIS CS B AIS CS B AIS..(9 ) CS B AIS AIS " ". 4 CS B AIS.... : "" / / -. (8 8. ) CS B AIS "". A AIS 4 4.(8. ).. CS B AIS : CS B AIS VHF VHF -. DSC TDMA DSC

77 75 ITU-R M.7-4 TDMA DSC 5.AIS.( DSC ). GNSS.( GNSS. ) WGS-84 khz 5 CS B 8.70 DSC AIS AIS AIS MHz,05.ITU-R M MHz,500 4 CS B AIS. /.SOG COG.7 GNSS CS B 4 8. : (7 8 ) GNSS (MMSI) CS B GNSS AIS. GNSS. 4..MMSI AIS AIS (MMSI) () (DSC) 5.

78 8. ITU-R M ( ) 7 ( UTC ) (COG) (SOG).() : AIS CS B - / - DSC 70 - khz : (8 ) CS B AIS < SOG 0 -. SOG -. 5 ) 4B 4A.4A 4B. (.4.4. MMSI..5.. MMSI 4.5..

79 77 ITU-R M ( ) 4.( ) - - ppm ± ppm ± ppm 50± -,500,05 5,975, ,4 0,5 0,5.. /.4..4 / / () ( 8 ). MHz,05 5,05.8 () ( 8 ). (khz) MHz () ( 087) ( ) AIS () MHz ( 088) ( ) AIS (bit/s) () BT- GMSK BT- GMSK GMSK.(MHz).(DSC) PH.RFR PH.CHS PH.AIS PH.AIS PH.BR PH.TS.4 ITU-R M AIS. TDMA. TDMA TDMA AIS AIS ITU-R M khz 5 B () ()...4 AIS....4.(GMSK/FM). (GMSK) (NRZI)

80 ITU-R M () 4.0.(00.) (0) NRZI.. DSC...4.DSC CS B AIS 70 TDMA 7. (.4 ) 70 TDMA fc <± 0 khz ±5 khz < fc < ±,5 khz 0 4 : GHz khz 9 GHz 4 GHz µs 08 Hz 500 ± db,5 ± dbm µs µs µs dbw 5 dbw 0 Hz 400 > Hz 480 ± 400 Hz 40 ± 400 Hz 75 ± 740 Hz 40 ± 400 : : : : dbm dbm 0 7.DSC

81 79 ITU-R M ().VHF (MAC) :.4..4 MAC.(TDMA).(T 0 ) CS...4 () dbm dbm offset khz ± dbm dbm MHz 50 MHz 50 dbm (MHz 5>) dbm (MHz <5) dbm 5 dbm 07 dbm 04 Offset Hz 500± dbm 77 dbm 7 dbm 0 dbm 0 dbm 0 dbm 0 dbm 0 GHz khz 9 GHz 4 GHz per %0 per % per %0 per %0 per %0 per %0 per %0 per %0 dbm 57 dbm 47 CS B AIS :...4 CS B AIS.( ).(0 = ) (µs ±) ±. 0

82 ITU-R M AIS.. () CS B :...4 ) CS B. (T 0 ) CS B ( ( ) AIS CS B. (T 0 ). (CS)...4 µs 979 µs 8 µs 4.(CS ) CS B AIS ) (µs 8) -.( CS B AIS.(...4 ) CS ".(5 ) (T A = 08 µs + T 0 ) 0 CSTDMA RF 5 Threshold level T 0 CS T A [μs] Time (? s) 7-5 CS dbm 07 CS.dB 0 ( )

83 8 ITU-R M.7-4 ) T E.(T A ) db 0 ( 8.(dBm 7 RF VDL ).( db P ss db db 50 db T 0 T A T B T B T E T F 7-8 : 4 ms 0 khz < RF CS db 0

84 ITU-R M P ss P ss RF P ss db 50 db,5 + db,5 + P ss db,5 + db 50 (P ss ) 4 (ms) T A T B T B T B ( ) ( ) T 0 T A T B T E T F. " "...4 Unavailable (...4 (T E ) RF :(T G ) VDL ) VDL : VDL...4 VDL :(FREE) :(USED) - - :(UNAVAILABLE) -. 0 " ".0.. (HDLC) (I-Packets) (DLS) DLS :..4 : DSL MAC ISO/IEC 09.(7 )

85 8 ITU-R M Start flag (FCS) End flag 7-7 ) (HDLC)...4 (5)...((7 ) ( s) HDLC ms,7. 5 VHF : (5...4 ) ( + ) ( ) ( ) CS 0 CS ( ) - (NM 0) (NM 0) 5 + :A 4 + : ( + ) ( ) ( ) ( ) 4 5

86 .(00000 ) ('s) NRZI (0's) ITU-R M (8 ) 8 ( NRZI ( HDLC :.(7Eh) ('s)...4 (FCS) (CRC) (FCS).CRC () CRC.99 ISO/IEC 09.(9 ) CRC

87 85 ITU-R M FCS 00% 80% A Time T 0 T A T B TC TD TE TF TG B 7-9.( ( NM % : - ) : -. : - ).( )

88 ITU-R M : T A T 0 40 T B T A (7Eh) HDLC (7Eh) HDLC (7Eh) HDLC : CS CRC :.( ) ( RF ) RF (0 ) (dbc 50 ) (µs) T(n) T 0 T A T B T C T D T E T F T G

89 87 ITU-R M (CRC) CS B CSTDMA (LME) 8 CRC -. MAC DLS LME :8 CS B VDL RF RI / = TI 0.5. RI NTT ) ( (RI) (NTT) (TI) (CP) TI CP :(40 ) CSTDMA.(TI) (CP) 0 " (TI) (CP). CP " " CP...4."USED" "" (0)

90 ITU-R M CSTDMA CP CP CP TX CP CP NTT 0.5TI NTT + 0.5TI RI NTT "" : ( ) ( ) /. 7-40

91 89 ITU-R M.7-4. " ". ( / ) AIS. : / - / / - /. /. / CS B. 4 8 (NTT) (8 ) AIS (5 )

92 VDL 8 ITU-R M ( ) (CS) (...4 ).8. (8 ) TDMA CS CS B AIS 8 VDL CS B VDL 9 CS B () AIS () () ( ) UTC UTC " CS B.

93 9 ITU-R M.7-4 () 9 CS B () 8. 5 CS AIS CS B 4 B A DGNSS B B CS B " " ()

94 ITU-R M () CS B AIS : AIS...4 DSC. TDMA DSC..4 8 ) 4.(...

95 9 ITU-R M.7-4 :..DSC CS B.. AIS -.khz 5 4 (4 ) ( ) ( ) ( ).. AIS ( ) ( ). CS CS B. ( ) /...4. CS B. CS B AIS

96 ITU-R M : CS B AIS CS B AIS DSC.4 DSC AIS.( ) DSC..AIS TDMA..4 DSC DSC / AIS. TDMA.4 0 DSC 70 DSC DSC..4.

97 95 ITU-R M DSC UTC 05:59-05:0 0:59-0:0 0:59-0:0 :59-:0 5:59-5:0 :59-:0 50:59-50:0 5:59-50:0 AIS DSC AIS DSC AIS CS.. AIS 0,5. AIS DSC...4. DSC AIS ( DSC ) ITU-R M.85 5.(. ).4.AIS TDMA DSC. 0,5 ITU-R M.85 DSC.AIS DSC DSC AIS. AIS

98 : 4 ITU-R M AIS 8.TDMA (N/A) " "... : :M : : : : : :B :M/B 4.4 M/B M M M B SOTDMA SOTDMA ITDMA SOTDMA SOTDMA, RATDMA, ITDMA () SOTDMA (9) RATDMA () FATDMA ()(7), RATDMA () ) (A ) (A ) (A UTC 4

99 97 ITU-R M.7-4 () 4 M/B M M/B M/B M/B M M/B M M/B M/B M/B M/B B B M N/A N/A N/A N/A SOTDMA, ITDMA N/A SOTDMA N/A N/A N/A N/A N/A N/A SOTDMA, ITDMA RATDMA, ITDMA () RATDMA (0), FATDMA, ITDMA () RATDMA, FATDMA, ITDMA () RATDMA (0), FATDMA, ITDMA () SOTDMA, RATDMA, ITDMA () RATMDA, FATDMA, ITDMA () RATMDA, ITDMA () RATDMA (0), FATDMA, ITDMA () RATDMA, FATDMA, ITDMA () RATDMA (0) FATDMA, ITDMA () RATDMA, FATDMA, ITDMA () RATDMA, FATDMA () FATDMA (), RATDMA () SOTDMA, ITDMA (), CSTDMA (5) ) (A SAR UTC UTC ) (4) ( DGNSS B (8) SAR /UTC /UTC DGNSS B

100 ITU-R M () 4 M/B M N/A ITDMA B (8) B 9 B M/B B B M/B M/B M/B M N/A N/A N/A N/A N/A N/A SOTDMA, ITDMA N/A FATDMA (), RATDMA FATDMA (), RATDMA () FATDMA (), RATDMA () FATDMA, RATDMA RATDMA, ITDMA, CSTDMA, FATDMA RATDMA, ITDMA, CSTDMA, FATDMA SOTDMA, RATDMA, ITDMA RATDMA () MMSI :A :B ( ) ( ) ) ( A () N/A SOTDMA :4. :DGNSS.Rr (.5.. ) ITDMA. RATDMA.( ) (..4.. ) RATDMA. 4 SOTDMA. ().( ) () ITDMA. () FATDMA. (FATDMA) RATDMA.(0 ).. UTC 0. () () () (4) (5)

101 99 ITU-R M.7-4 (.4 0 ) :.AIS AIS AIS AIS.AIS AIS :( ) :.9 8.SOTDMA 5 AIS AIS.RF B. 9 8 B 0.SOTDMA (... ) RATDMA 4 8.(..5 ) () (7) (8) (9) (0)

102 ITU-R M WGS ASCII ASCII ASCII 44 ASCII 0 0x x ! 0x x A 0x x x x B 0x x # 5 0x x C 0x x $ 0x x D 4 0x x % 7 0x x E 5 0x x & 8 0x x F 0x x ` 9 0x x G 7 0x x ( 40 0x x H 8 0x x ) 4 0x x I 9 0x x * 4 0xA xA J 0 0x0A x4A xB xB K 0x0B x4B 000 0, 44 0xC xC L 0x0C x4C xD xD M 0x0D x4D xE xE N 4 0x0E x4E / 47 0xF xF 000 O 5 0x0F x4F x x P 0x x x x Q 7 0x x x x R 8 0x x x x S 9 0x x x x T 0 0x x x x U 0x x x x V 0x x x x W 0x x x x X 4 0x x x x Y 5 0x x : 58 0xA xA Z 0xA x5A ; 59 0xB xB 00 0 [ 7 0xB x5B 00 0 < 0 0xC xC \ 8 0xC x5C = 0xD 0 0xD 00 0 ] 9 0xD x5D 00 0 > 0xE 0 0xE 00 0 ^ 0 0xE x5E 00 0? 0xF 0xF 00 0xF x5F 00 Space 0x x

103 0 ITU-R M : = = 0 0 MMSI = = = = 0 = 7 = = 5 = 4 = 9 = 8 C = 0 (HSC) A = - (WIG) () AIS-SART = 4 ( AIS-SART ) = = 5 (TI (TI 708 = = - 0 : SQRT(ROTsensor) 4,7 = ROT AIS ROTsensor. ROTAIS ) 5 = 7+ ) 5 = 7-.() ( 80) 8-.COG ROT.(TI) ( 0,-0) /0 0, = 0 = 0 47 (m 0 ) = (m 0 <) = 0 = 0 ) = 80 ±) /0 000.( ) = ( ( = = (79AC0 h ) = ROT AIS SOG

104 ITU-R M () 45 ) = 90 ±) /0 000.( ) = (. = = (440H) 9. = = 00 (E0 h ).(599-0) / = ( = = 5) (59-0) ) EPFS UTC ( ( ) 47 = = 0 = = ( :). ( ). RAIM = = 4 RAIM RAIM = COG RAIM SOTDMA SOTDMA ITDMA

105 0 ITU-R M (PA) () RAIM () RAIM ( %95 ) (m 0 (m 0 (m 0 (m 0 (m 0 (m 0 <) = >) = <) = >) = >) = <) = m 0 m 0 m 0 m 0 RAIM RAIM RAIM RAIM RAIM RAIM RAIM IEC - GBS RAIM GNSS " GBS RAIM.m0 RAIM."" : " " " ( expected error in latitude) ( expected error in longitude) EXPECTED RAIM error = +. GNSS IEC - () () :4. UTC :. UTC.0. 4 UTC (0 ). 48 UTC UTC UTC = 4 UTC =. = = = UTC = MMSI = UTC = = UTC = = UTC = UTC UTC UTC UTC

106 ITU-R M () = UTC = = UTC = (m 0 ) = (m 0 <) = = PA ) = 80 ±) /0 000 ( ) = (. = = (79AC0 h ) = 8 ) = 90 ±) /0 000 ( ) = (. = = (440 h ) = 9 : () = 0 GPS = GNSS (GLONASS) = GPS/GLONASS = 0 0 Loran-C = 4 Chayka = = Galileo = = GNSS = 5 = A AIS = 0.AIS 7 A =.AIS. 47 ( ). RAIM = = RAIM RAIM = 0 SOTDMA UTC UTC RAIM

107 05 ITU-R M A :5. AIS = = 0 MMSI = 0 = = - ITU-R M.7- ITU-R M.7- = = = = ASCII = 0 ASCII. = = "@@@@@@@@@@@@@@@@@@@@" "SAR AIRCRAFT NNNNNNN". NNNNNNN 44 B = = = 0.. = 99- = = (.. 4 ) (m). A. D = C () = 0 (GPS) = GLONASS = GPS/GLONASS = 7 Loran-C = 4 Chayka 5 = = Galileo = = GNSS = = AIS (IMO) /

108 ITU-R M () 49 MMDDHHMM UTC = = 0 - :-9 = = 0 - :-5 = = 4-0 :-0 = = :0-5 = = 0 m 5,5 = 55 m 0/ A.85 ASCII 0 ) ( = = = 0).. ( ETA DTE. (DTE) DTE. DTE

109 07 ITU-R M.7-4 () () ( () ) () - - () X - () Y - () Z - 4 () OS () - WIG - - HSC () D C B A OS :DG :HS :MP. Z Y X 4 - () ()

110 ITU-R M m A A B C D 9 9 Bit -Bit = 5 m or greater Bit -Bit 0 Bit -Bit Bit 0-Bit = 5 m or greater 0-; = m or greater 0-; = m or greater C D B () A = C = A :. = D # B = D = C = B = A :.( =). = D = A 7-4 : = = 5.. = = MMSI -0 MMSI : = B AIS

111 09 ITU-R M ( ) 5. : :7 5. (..5 (..5.( ) )..5 : 7.. ) 5. VHF = 7 =. = = 0 MMSI MMSI 0 0

112 ITU-R M () 5-0 MMSI -0 MMSI -0 MMSI : = = 0 MMSI. 5.. B AIS

113 ITU-R M.7-4 ( ) 55. : SAR : = = 0 MMSI (m ) (m) (( ) GNSS ) m = = = 4095 ( 0-0) 0 = 0 = 0 (m 0 ) = (m 0<) = 0 = 0 47 PA ) = 80 ±) /0 000 ( ) = ( ( = = (79AC0 h ) = 8 ) = 90 ±) /0 000 ( ) = ( ( = = (440 h ) = (GNSS) SOG

114 ITU-R M.7-4 () 5. = = 00(E0 h ).( 599-0) = 0/ ) EPFS UTC ( ( ) GNSS = 0 = ( = = = 0) (.. ) = = 0 = RAIM = 0 ( ) RAIM 47. RAIM = = SOTDMA = 0 ITDMA = (..7.. ) SOTDMA (..7.. ) ITDMA COG DTE RAIM. UTC UTC : = = 0 UTC MMSI UTC MMSI 0 0 7

115 ITU-R M.7-4 UTC : : = =. = = 0 0 MMSI..5-0 MMSI : = 44 B ASCII 5 AIS ASCII 59. : 59 ASCII

116 . 5 ITU-R M :. : = = 0-0 MSSI 44 B ASCII 5 AIS ASCII. : ASCII (AIS-SART). :."SART ACTIVE" :."SART TEST" :

117 5 ITU-R M.7-4 (DSC :5 ) TDMA VHF.. UTC. B-CS B-SO A () () 4 () N N N N N N () 4 () N 4 N N N N N N N N N N N N () 4 () 4 () A B-SO B-CS.B A " ". :. 0 ID. ID :() ()... ID. ID :() ID. ID ID... ID. ID. :() :() ID. ()... ID..(0). ID. () () () = = 0-0 MMSI MMSI 0 0 ID ID.

118 ITU-R M.7-4 () MMSI ID.. ID ID.. : A AIS ) ( ) A AIS. (..4. ( ). -..(0 ) FATDMA.

119 7 ITU-R M = = 0 MMSI () A.MMSI () A.B. ().MMSI A. () A ID A A A ID B B B () : = 0 5 = 75 = 5 = 5 = 4 75 = 5 45 =. = 7 B AIS. 7.

120 ITU-R M GNSS :7 DGNSS. ITU-R M.8. DGNSS = = 0-0 MMSI = 80±) /0 DGNSS.( =. 8 = 90±) /0 DGNSS.( =. 9..( ).( ) DGNSS ( ) 9 = N : 8 0 = N : : 9 ( 599,4-0) ITU-R M.8 0, ITU-R M.8 (7-0 ) DGNSS (ITU-R M.8 ) 0 5 Z N

121 9 ITU-R M.7-4 () DGNSS ( ) 9 = N 4 = 7 N DGNSS ITU-R M.8 -.DGNSS GNSS Z DGNSS DGNSS -.DGNSS.DGNSS 7 -.DGNSS 7 VDL B :8. B SOG = = 0-0 CS MMSI ( 0-0) 0 = 0 = 0 (m 0 ) = (m 0<) = 0 = 0 47 PA ) = 80±) /0 000 ( ) = ( ( = = (79AC0 h ) = 8 ) = 90±) /0 000 ( ) = (. = = (440 h ) = 9. = = 00(E0 h ).( 599-0) = / ( = = 5) (59-0) SOG COG

122 ITU-R M () ) EPFS UTC ( ) CS AIS B SOTDMA = 0 CS B = 4 = 0 4 = DSC = 0 ( ) DSC = khz 55 = 0 " ) = ( "B AIS AIS = 0 = = = 0 = RAIM = 0 ( ) RAIM 47. RAIM = = SOTDMA = 0 ITDMA = ( CS B ) (..7.. ) SOTDMA (..7.. ) ITDMA 0 CS B : 9 8 B B DSC B B B RAIM B :9 7..B.ITDMA 8. / :

123 ITU-R M = = 0 MMSI ( 0,-0) 0 = 0 = 0 (m 0 ) = (m 0<) = 0 = 0.47 PA ) = 80±) /0 000.( ) = (. = = (79AC0 h ) = 8 ) = 90±) /0 000.( ) = (. = = (440 h ) = 9 = = 00(E0 h ).( 599-0) = / ( = = 5) (59-0) (0 59-0) EPFS UTC ( ). 0 ASCII 44 = = = 0.. = 99- = = (.. GLONASS = GNSS = 4 ) global positioning system (GPS) = Chayka = 5 Loran C = Galileo = = = = GPS/GLONASS = = 8 = SOG COG /

124 ITU-R M.7-4 () 8 RAIM = (.. 0 ( ) RAIM 47. RAIM = = ) ( = = = 0) = = =. 0 4 RAIM DTE :0 (FATDMA) ().. (). () () ).( : : (0 ) (4 ). (MMSI)

125 ITU-R M = = 0 MMSI. = = 0 = 0 = 0 () : () () () 5- : () () () 5- : () () () (AtoN) :.(AtoN) AIS Rr. VHF ( ) ().. 9.

126 ITU-R M = = 0 (ITU-R M ) MMSI IALA = = ASCII = " " (m 0 ) = (m 0<) = 0 = 0 47 PA = 80 ±) / =. = = (79AC0 h ) = 8 = 90 ±) / = = = (440 h ) = 9 4 ) (.. = = 0 (GPS) = GNSS (GLONASS) = GBS/GLONASS = Loran-C = 4 Chayka = 5 = =7.. Galileo = 8 = 4-9 GNSS = ) EPFS UTC ( ( ) = = 0 : /

127 5 ITU-R M.7-4 RAIM = 0 () 70. = ( ) 47. RAIM = = = RAIM = = 0. = = =. ASCII 4 " ". 0. " RAIM : 4 A -. : * -. ).0 D = C = B = A.( ). * ( ) = D = C = B = A -.( () " /" " /" 7. (). () /.(70 ) " ".() = D = C = B = A () ()

128 ITU-R M.7-4. :AIS " (IALA) 997 IALA ) ". /.(7 " :IALA. ". (4 ). 7. ( AIS - )

129 7 ITU-R M.7-4 /(LANBY) () 7 / IALA / : VHF ( )..4. AIS ( ). VHF.(.4 ) / 0.

130 ITU-R M = = 0 MMSI. 4 ITU-R M ITU-R M.084 () B /A B /A = 0 B /A A = B /A B = :5- / = () = 0 (-) 8 /0 ( = = 80 ±) = 8 (-) /0 ( = = 90 ± ) = 9 (-) 8 /0 ( = = 80±) (-) /0 ( = = 90±) ) = = = 0 ( () ( ) = 0 (ITU-R M.7- khz,5 ) = ( ) = 0 (ITU-R M.7- khz,5 ) = A B / 8 ) (MSBs) ( ) (LSBs) ( 8 ) (MSBs) ( ) (LSBs) ( A B

131 9 ITU-R M.7-4 : ) " ".(0..." " : / = = MMSI. (-) /0 ( = = 80±) (-) /0 ( = = 90±) (-) ( = = 80±) (-) /0 ( = = 90±) A = () = 0 = B = = 5 "SO" B = 4 = "SO" B = 5 0 = 9 7 () =

132 ITU-R M () 7 : A = () B /A B /A = 0 = B /A B = B /A 74 5 = 5- = = / 74 ("CS" B ) / -.

133 ITU-R M.7-4. MMSI AIS 4 :4. B A."CS" B 4 B A.4 A 4 B..B A 4 4 "CS" B 75 A = = A 0 MMSI ASCII.MMSI. = 0 "SAR AIRCRAFT NNNNNNN" NNNNNNN 4 7 B = = MMSI B = = 0.. = 99- = = ) ( = 7A 0 8 4

134 ITU-R M.7-4 () 7 ASCII.MMSI = 7.(.. 4 ). MMSI. B = A. "0" D = C = / MMSI. 7A ASCII ().. "'' ""."5'' "''... (MSB) 4... ( 0... ( 4) 0... (LSB) 0) (. (IALA) 4 8) 9 () :

135 ITU-R M = = 0 MMSI ( ) = 0 (MMSI 0 ) = ( ) = 0 = () 0 = MMSI 0 = ) 5. ( 8 0 0/ ( ) 0 0 : SOTDMA ( 5 ) 004.ITDMA

136 ITU-R M (MMSI. = = 0 MMSI ( ) = 0 0 ) = ( ) = = () 0 = MMSI 0 = 5. 9 ) ( 0 SOTDMA = ITDMA = (..7.. ) SOTDMA (..7.. ) ITDMA /

137 5 ITU-R M ( ) -slot -slot -slot 4-slot 5-slot AIS :7 5. ) A AIS.( ( = = 80±) ( = = 90±) MMSI = = = = /0 /0 (-0) 5 (59-0) = GNSS = = GNSS GNSS RAIM SOG COG.. -

138 ITU-R M (VDL). : ( ) - MHz.975 MHz.05 bit/s 9 00 bits 4 ms,0 µs 8 ms, W EIRP 8 - ( ) ( ) %0 ) khz ±..( PH.AIS PH.AIS PH.BR PH.TS PH.TST.84 8 AIS

139 7 ITU-R M NRZI GMSK PH.DE PH.FEC PH.IL PH.BS PH.MOD 84 0,4 BT 0,5 PH.TXBT PH.MI.85 ( Hz MHz,5 400 ( ( 85 () W Hz () Hz 500± khz 0± < Δfc dbc 0- khz,5± > Δfc > khz 5 ± dbc 40-9 ( ) ( ) )... 4 Hz 50 Hz Hz 400 > Hz 480 ± 400 Hz 40 ± Hz 75 ± 740 ) 00 ) Hz 40 ± μw 5 MHz 5 MHz 7 MHz MHz 0 MHz 08 55

140 ITU-R M dbc ,5 0,5 ƒc 7-4.(μs ±) ± AIS UTC AIS AIS.AIS AIS. AIS.SOTDMA 7 = 8.. ±. = =...AIS AIS 4 5

141 9 ITU-R M ( 8) + To To + min To + 7 min To + ± (8 min ± s) Time = xx ).( xxyyyy ( ) AIS-SART = yyyy 00 = xx 99 0 (Acknowledge) (Aid to navigation) (Bit rate) (Bit scrambling) (Bandwidth Time) - (Channel bandwidth) (Channel spacing) (Course over ground) (Candidate period) (Carrier sense) (Designated area code) (Automatic identification system) (AIS Search and Rescue Transmitter) (American standard code for information interchange) (Comité International Radio Maritime) (Carrier sense time-division multiple access) (Cyclic redundancy check) ACK AIS AIS-SART ASCII AtoN BR BS BT CHB CHS CIRM COG CP CRC CS CSTDMA DAC

142 ITU-R M (Differential global navigation satellite system) (Electronic chart display and information system) (Data encoding) (Dangerous goods) (Data link service) (Frame check sequence) (Function identifier) (Frequency modulation) (FATDMA) (FATDMA) (FATDMA) (Heading) (Harmful substances) (High speed craft) (Digital selective calling) (Data terminal equipment) (Electronic navigation chart) (Electronic position fixing system) (Estimated time of arrival) (Fixed access time division multiple access) (Forward error correction) (First in first out) (FATDMA block size) (FATDMA increment) (FATDMA start slot) (Global navigation satellite system) (Global maritime distress and safety system) (Gaussian filtered minimum shift keying) (Global navigation satellite system) (Global positioning system) (High level data link control) (International application identifier) International Association of Marine Aids to Navigation ) (and Lighthouse Authorities (International Civil Aviation Organization) (International Electrotechnical Commission) (International function message) (International Maritime Organization) (Identifier) (Interleaving) DE DG DGNSS DLS DSC DTE ECDIS ENC EPFS ETA FATDMA FCS FEC FI FIFO FM FTBS FTI FTST GLONASS GMDSS GMSK GNSS GPS HDG HDLC HS HSC IAI IALA ICAO ID IEC IFM IL IMO

143 4 ITU-R M.7-4 (International Standardization Organization) (Incremental time division multiple access) (ITDMA slot increment) (ITDMA) (ITDMA) (ITDMA) (Kilohertz) (Maximum) (Megahertz) (Minimum) (Modulation) (Marine pollutants) (Nominal increment) (Nautical mile) (Nominal slot) (Parts per million) (Radio frequency) (Reporting interval(s)) (Rate of turn) (Radio Regulations) (ITDMA keep flag) (ITDMA number of slots) (International Telecommunication Union) (Link management entity) (Least significant bit) (Medium access control) (Maritime identification digits) (Maritime mobile service identity) (Most significant bit) (Non return zero inverted) (Nominal start slot) (Nominal transmission slot) (Nominal transmission time) (Open system interconnection) (Presentation Interface) (Regional application identifier) (Receiver autonomous integrity monitoring) (Random access time division multiple access) (Regional function message) (Regional frequencies) ISO ITDMA ITINC ITKP ITSL ITU khz LME LSB MAC MAX MHz MID MIN MMSI MOD MP MSB NI NM NRZI NS NSS NTS NTT OSI PI ppm RAI RAIM RATDMA RF RFM RFR RI ROT RR

144 ITU-R M (Reporting rate (position reports per minute)) (RATDMA attempts) (RATDMA candidate slot counter) (RATDMA) (RATDMA end slot) (RATDMA calculated probability for transmission) (RATDMA) (RATDMA current probability for transmission) (RATDMA) (RATDMA probability increment) (RATDMA priority) (RATDMA start probability) (Receive BT-product) ( ) (RATDMA) (RATDMA) (RATDMA) (RATDMA) (RATDMA) (Receiver) (Search and rescue) (Selection interval) (Self organized) (Transmission interval) (Time-out) (Training sequence) (Transmitter) (Very high frequency) (Wing in ground) (Speed over ground) (Self organized time division multiple access) (Time division multiple access) (Transmitter settling time) (Transmit BT-product) (Transmitter output power) (Coordinated universal time) (VHF data link) (Vessel traffic services) (World Geodetic System) Rr RTA RTCSC RTES RTP RTP RTPI RTPRI RTPS Rx RXBT SAR SI SO SOG SOTDMA TDMA TI TMO TS TST Tx TXBT TXP UTC VDL VHF VTS WGS WIG