aismsg_3 Struct Reference

#include <vdm_parse.h>

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Detailed Description

AIS Message 3 - Position Report with ITDMA.

Data Fields
char	msgid
	6 bits : MessageID (3)
char	repeat
	2 bits : Repeated
unsigned long	userid
	30 bits : UserID / MMSI
char	nav_status
	4 bits : Navigational Status
unsigned char	rot
	8 bits : Rate of Turn
int	sog
	10 bits : Speed Over Ground
char	pos_acc
	1 bit : Position Accuracy
long	longitude
	28 bits : Longitude in 1/10000 minute
long	latitude
	27 bits : Latitude in 1/10000 minute
int	cog
	12 bits : Course over Ground
int	true
	9 bits : True Heading
char	utc_sec
	6 bits : UTC Seconds
char	regional
	4 bits : Regional bits
char	spare
	1 bit : Spare
char	raim
	1 bit : RAIM Flag
char	sync_state
	2 bits : ITDMA sync state
int	slot_increment
	13 bits : ITDMA Slot Increment
char	num_slots
	3 bits : ITDMA Number of Slots
char	keep
	1 bit : ITDMA Keep Flag

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Field Documentation

char aismsg_3::msgid

6 bits : MessageID (3)

char aismsg_3::repeat

2 bits : Repeated

unsigned long aismsg_3::userid

30 bits : UserID / MMSI

char aismsg_3::nav_status

4 bits : Navigational Status

unsigned char aismsg_3::rot

8 bits : Rate of Turn

int aismsg_3::sog

10 bits : Speed Over Ground

char aismsg_3::pos_acc

1 bit : Position Accuracy

long aismsg_3::longitude

28 bits : Longitude in 1/10000 minute

long aismsg_3::latitude

27 bits : Latitude in 1/10000 minute

int aismsg_3::cog

12 bits : Course over Ground

int aismsg_3::true

9 bits : True Heading

char aismsg_3::utc_sec

6 bits : UTC Seconds

char aismsg_3::regional

4 bits : Regional bits

char aismsg_3::spare

1 bit : Spare

char aismsg_3::raim

1 bit : RAIM Flag

char aismsg_3::sync_state

2 bits : ITDMA sync state

int aismsg_3::slot_increment

13 bits : ITDMA Slot Increment

char aismsg_3::num_slots

3 bits : ITDMA Number of Slots

char aismsg_3::keep

1 bit : ITDMA Keep Flag

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The documentation for this struct was generated from the following file:

• /Users/brianlane/projs/aisparser/c/src/vdm_parse.h

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