1、 DRM (MDI) 547062011 27 2002 . 184- , 1.02004 . 1 - () - - , - ( -)2 3 13 2011 . 867-4 - (E) ETSI TS 102 820 v3.1.1(201012) (DRM). (MDI)(ETSI TS 102 820 v3.1.1 (201012) Digital Radio Mondiale (DRM); Multiplex Distribution Interfae (MDI)5 - , - . () . - , , 2012 , - - II 5470620111 12 13 , , .14 44.1
2、 .44.2 .44.2.1 TAG TAG 55 TAG .55.1 TAG 65.1.1 (*ptr)75.1.2 DRM (dlfc) 75.1.3 (fac_) .85.1.4 (sdc_)85.1.5 (sdci) 95.1.6 (robm) 95.1.7 (str0, str1, str2 str3) 105.2 TAG .105.2.1 (info) .105.2.2 (tist) .115.3 11 () DRM 13.1 (SFN) .13.2 (SMFN) .13.3 (MFN) .13.4 .13 () DRM .14.1 .14.2 .14 () .15 () MDI
3、16.1 .16.2 MDI 17.3 .18 19 547062011IIIETSI TS 102 820 v3.1.1 (201012) (JTC) - (EBU), (CENELEC) (ETSI). 30 :- (): 148,5 283,5 1 - 1;- (): 526,5 1606,5 1 3 525 1705 - 2 1;- (): 2,3 27 . , -:- , , ( 11 );- . , , , , - . :- ;- ;- , , - . , , , , , , . , - 30 , 1998 . (DRM). DRM , - DRM . , , - . -(http
4、:/www.drm.org/) DRM. 2005 . DRM - DRM - . :- 4768 ( I), ;- 65,874 ( M );- 7690 ( M );- 87,5107,9 ( II), M . DRM.IV 547062011 DRM (MDI)Digital audio broadcasting system DRM. Multiplex distribution interfae (MDI) 201207011 DRM DRM.2 .3 , , 3.1 :3.1.1 (byte): 8 .3.1.2 (Global Position System; GPS): - .
5、3.1.3 (Fast Access Channel; FAC): -, , -.3.1.4 (Service Description Channel; SDC): , , . SDC .3.1.5 (logical frame): C 400 .3.1.6 (International Atomic Time; IAT): , - SI .1 SI () .2 TAI GPS , 19 .3.1.7 (Multi-Frequency Network; MFN): , , . ( MFN, ), AFS DRM .1 5470620113.1.8 (Modified Julian Date;
6、MJD): , GMT 17 1858 . , MJD , , SI , , , .3.1.9 (multiplex frame): , - ( 400 ). .3.1.10 (Single Frequency Network; SFN): , .3.1.11 (Main Service Channel; MSC): - , .3.1.12 MDI (MDI packet: A TAG): , TAG , - .3.1.13 (Alternative Frequency Switching; AFS): - DRM , , .3.1.14 (Distribution and Communica
7、tion Protocol;DCP): , , / - - .3.1.15 (Synchronized Multi-Frequency Network;SMFN): , , - . , AFS .3.1.16 (Greenwich Mean Time; GMT): - , UTC.3.1.17 (transmission super-frame): -, OFDM SDC.3.1.18 (transmission frame): - OFDM, OFDM .3.1.19 (Coordinated Universal Time; UTC): , SI , - ( ) UTC - c177 0,9
8、 . (TAI) UTC 10 1 1972 . ( TAI UTC, ), 25 2003 . 22 , , TAI = UTC + 32 .3.1.20 GPS Time: , GPS, 6 1980 . ( 604800 ), 1024 ( 19,7 ).3.1.21 TAG (TAG value): TAG .3.1.22 TAG (TAG name): TAG , - .3.1.23 TAG (TAG packet): TAG , .3.1.24 TAG (TAG item): DCP , - , .2 5470620113.2 :N N, . , , 216 42;MIN a,z
9、.3.3 : , ; ; ; ;AF (Application Framing) ;AFS (Alternative Frequency Switching) ;BOOTP (BOOT Protocol) ;CRC (Cyclic Redundancy Check) ( );DCP (Distribution and Communication Protocol) ;DHCP (Dynamic Host Configuration Protocol) ;DRM (Digital Radio Mondiale) ;FAC (Fast Access Channel) ;GMT (Greenwich
10、 Mean Time) ;GPS (Global Positiong System) ;IP (Internet Protocol) -;ISO (International Organization for Standardization) ;LSb (Least Significant bit) ;LSB (Least Significant Byte) ;MDI (Multiplex Distribution Interface) ;MFN (Multi-Frequency Network) ;MJD (Modified Julian Date) ;MSb (Most Significa
11、nt bit) ;MSB (Most Significant Byte) ;MSC (Main Service Channel) ;OFDM (Orthogonal Frequency Division Multiplexing) - ;RF (Radio Frequency) ;rfu (reserved for future use) ;SDC (Service Description Channel) ;SFN (Single Frequency Network) ;SMFN (Synchronized Multi-Frequency Network) ;TAG (Tag, Length, Value) , , ;TAI (International Atomic Time) ;UDP (User Datagram Protocol) ;UTC (Coordinated Universal Time) ;UTCO (Coordinated Universal Time ffse
