your position is our focus
4.6.12 RAIM (Receiver Autonomous Integrity Monitoring)
is
receiving
from
the
s
at
the
information
used
in
the
navigation
solution
is
valid.
Four
SVs
are
required
for
a
3D
n
tion.
The
pre
bad
SV
could
tected
if
five
SVs
were
available.
A
bad
SV
could
be
iden
from
on
if
six
or
more SVs
De ction
and
Exclusion
(FDE)).
T
Technolog
s
RAIM
and
has
the
bility
to
enable/disable
this
feature
using
software
commands.
RAIM
can
only
work
with
sufficient
SV
visibility
and
acceptable
DOP
geometry.
RAIM
is
activated
by
default
and
e.
The
status
of
the
RAIM
system
is
reported
in
the
NMEA
–
GPGBS
(GNSS
Satellite
Fault
Detection)
message.
RAIM
is
a
process
where
the
GPS
unit
itself
uses
various
techniques
to
monitor
the
signals
it
atellites,
ensuring
th
avigation
solu
sence
of
one
ti
be
de
tified
and
eliminated
the
solu
are
available
(Fault
te
he
ANTARIS
®
4
y
support
a
it
is
recommended
to
enable
it
all
the
tim
GPS
Modules
-
System
Integration
Manual
(SIM)
(incl.
Reference
Design)
Receiver
Description
GPS.G4-MS4-05007-A1
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