aismsg_9 Struct Reference

#include <vdm_parse.h>

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Detailed Description

AIS Message 9 - Standard SAR Aircraft position report.

Data Fields
char	msgid
	6 bits : MessageID (9)
char	repeat
	2 bits : Repeated
unsigned long	userid
	30 bits : UserID / MMSI
int	altitude
	12 bits : Altitude
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
char	utc_sec
	6 bits : UTC Seconds
unsigned char	regional
	8 bits : Regional bits
char	dte
	1 bit : DTE flag
char	spare
	3 bits : Spare
char	assigned
	1 bit : Assigned mode flag
char	raim
	1 bit : RAIM flag
char	comm_state
	1 bit : Comm State Flag
struct {
char   sync_state
	2 bits : SOTDMA Sync State
char   slot_timeout
	3 bits : SOTDMA Slot Timeout
int   sub_message
	14 bits : SOTDMA Sub-Messsage
}	sotdma
struct {
char   sync_state
	2 bits : ITDMA Sync State
int   slot_inc
	13 bits : ITDMA Slot Increment
char   num_slots
	3 bits : ITDMA Number of Slots
char   keep_flag
	1 bit : ITDMA Keep Flag
}	itdma

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Field Documentation

char aismsg_9::msgid

6 bits : MessageID (9)

char aismsg_9::repeat

2 bits : Repeated

unsigned long aismsg_9::userid

30 bits : UserID / MMSI

int aismsg_9::altitude

12 bits : Altitude

int aismsg_9::sog

10 bits : Speed Over Ground

char aismsg_9::pos_acc

1 bit : Position Accuracy

long aismsg_9::longitude

28 bits : Longitude in 1/10000 minute

long aismsg_9::latitude

27 bits : Latitude in 1/10000 minute

int aismsg_9::cog

12 bits : Course Over Ground

char aismsg_9::utc_sec

6 bits : UTC Seconds

unsigned char aismsg_9::regional

8 bits : Regional bits

char aismsg_9::dte

1 bit : DTE flag

char aismsg_9::spare

3 bits : Spare

char aismsg_9::assigned

1 bit : Assigned mode flag

char aismsg_9::raim

1 bit : RAIM flag

char aismsg_9::comm_state

1 bit : Comm State Flag

char aismsg_9::sync_state

2 bits : ITDMA Sync State

char aismsg_9::slot_timeout

3 bits : SOTDMA Slot Timeout

int aismsg_9::sub_message

14 bits : SOTDMA Sub-Messsage

struct { ... } aismsg_9::sotdma

int aismsg_9::slot_inc

13 bits : ITDMA Slot Increment

char aismsg_9::num_slots

3 bits : ITDMA Number of Slots

char aismsg_9::keep_flag

1 bit : ITDMA Keep Flag

struct { ... } aismsg_9::itdma

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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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