1、 551062012 27 2002 . 184-3 , 1.02004 . 1 - 2 363 3 - 15 2012 . 808-4 , - . () . - , , 2013 , - - II 5510620121 .12 13 14 25 .26 SISNET .27 SISNET .38 SISNET.6 7III 551062012 Global navigation satellite system. Correction data transmission formats using Internet 201305011 . .2 : 528652009 . - . 52928
2、2010 . 536102009 . - . - - , 1 , , . (), - () . , , , , .3 52928, - :3.1 : , (), , .3.2 : , - - , , .1 551062012 3.3 Satellite based augmentation system; SBAS: - , , .3.4 ; : - SBAS .3.5 Signal in space through the internet; SISNET: - SBAS () .4 : ; - ( ); SISNET; ;GPRS GSM;GPS ;GSM .5 5.1 SISNET SI
3、SNET , - , - , (, ). SISNET . SISNET 1 /. GSM.5.2 .5.2.1 - SISNET. -.5.2.2 SISNET (), - , . TCP/IP.5.2.3 - SISNET. - SISNET.5.2.4 , , GSM GPRS.6 SISNET6.1 SISNET - : , 1 , 2 , , N 2 551062012 , , , . (0D hex) (0A 0D hex).6.2 SISNET, -, - ( ), -. :- (c174) ,- (c174) . , , :- ,- .6.3 SISNET :- ,- *, ,
4、 ,- *.6.4 SISNET .6.4.1 ( ):- AUTH ;- MSG ;- GETMSG ;- START ;- STOP ;- EPHEM ;- GPS_IONO , GPS.6.4.2 O ( ):- *AUTH ;- *MSG , ;- *GETMSG GETMSG, ;- *START START, -;- *STOP STOP, ;- *EPHEM EPHEM, ;- *GPS_IONO GPS_IONO, GPS;- *ERR , .6.4.3 ( ):- *TXT , .7 SISNET7.1 SISNET, ( - ), :7.1.1 AUTH AUTH , ,
5、q3 551062012 , 15 ; , 8 ;q , - .7.1.2 MSG MSG , . , .7.1.3 GETMSG GETMSG , , , . , , :1 ;2 . . 30 .7.1.4 START START .7.1.5 STOP STOP .7.1.6 EPHEM EPHEM , PRN , . *EPHEM RINEX- .PRN , :137 GPS;3861 ( 37). .7.1.7 GPS_IONO -GPS_IONO 8 (c970,c971,c972,c973,c980,c981,c982c983) , GPS.7.2 SISNET, O ( - )
6、7.2.1 *AUTH *AUTH ,c60LFc62 c60CRc62c60LFc624 551062012 (, ), *ERR. AUTH q, *AUTH , .7.2.2 *MSG , *MSG , GPS week , GPS time , (hex)GPS week GPS ( 1024), -;GPS time GPS ( 604800), ; . 250 . SISNET 63 (252 ). - . * , . - XOR. 24 . SISNET 64 . 0 . - , *ERR.7.2.3 *GETMSG GETMSG, - *GETMSG , GPS week , GPS time , (hex) - , *ERR.7.2.4 *START START, - *START *MSG, .7.2.5 *STOP STOP, *STOP
