Cours sur les méthodes d'évaluation acoustique ... - Fao - Copemed

The NMEA 0183 Protocol 19XDRCross Track Error – Dead Reckoning1 2 3 4 n| | | | |$--XDR,a,x.x,a,c--c, ..... *hh1) Transducer type2) Measurement data3) Units of measurement4) Name of transducerx) More of the samen) ChecksumXTECross-Track Error – Measured1 2 3 4 5 6| | | | | |$--XTE,A,A,x.x,a,N,*hh1) StatusV = LORAN-C blink or SNR warningA = general warning flag or other navigation systems when a reliablefix is not available2) StatusV = Loran-C cycle lock warning flagA = OK or not used3) Cross track error magnitude4) Direction to steer, L or R5) Cross track units. N = Nautical Miles6) ChecksumXTRCross Track Error – Dead Reckoning1 2 3 4| | | |$--XTR,x.x,a,N*hh1) Magnitude of cross track error2) Direction to steer, L or R3) Units, N = Nautical Miles4) ChecksumZDATime & Date – UTC, Day, Month, Year and Local Time Zone1 2 3 4 5 6 7| | | | | | |$--ZDA,hhmmss.ss,xx,xx,xxxx,xx,xx*hh1) Local zone minutes description, same sign as local hours2) Local zone description, 00 to +/- 13 hours3) Year4) Month, 01 to 125) Day, 01 to 316) Time (UTC)7) ChecksumZDLTime and Distance to Variable PointFormat unknown