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

The NMEA 0183 Protocol 16TLLTarget Latitude and LongitudeFormat unknownTRFTRANSIT Fix DataobsoleteTTMTracked Target Message11 131 2 3 4 5 6 7 8 9 10| 12| 14| | | | | | | | | | | | | |$--TTM,xx,x.x,x.x,a,x.x,x.x,a,x.x,x.x,a,c--c,a,a*hh1) Target Number2) Target Distance3) Bearing from own ship4) Bearing Units5) Target speed6) Target Course7) Course Units8) Distance of closest-point-of-approach9) Time until closest-point-of-approach "-" means increasing10) "-" means increasing11) Target name12) Target Status13) Reference Target14) ChecksumVBWDual Ground/Water Speed1 2 3 4 5 6 7| | | | | | |$--VBW,x.x,x.x,A,x.x,x.x,A*hh1) Longitudinal water speed, "-" means astern2) Transverse water speed, "-" means port3) Status, A = data valid4) Longitudinal ground speed, "-" means astern5) Transverse ground speed, "-" means port6) Status, A = data valid7) ChecksumVDRSet and Drift1 2 3 4 5 6 7| | | | | | |$--VDR,x.x,T,x.x,M,x.x,N*hh1) Degress True2) T = True3) Degrees Magnetic4) M = Magnetic5) Knots (speed of current)6) N = Knots7) Checksum