2 System Consideration
2.1 Introduction
All
ANTARIS
®
4
products
run
on
the
same
GPS
engine.
The
different
types
of
receivers
differ
mainly
in
flexibility
and
user
specific
features.
er
consumption
applications,
FixNOW™
can
be
enabled
(for
details
refer
to
Section 4.2.7
).
up
utilise
the
aiding
function.
ology
•
Standard
GPS
receivers
offer
highest
reliability.
ations
with
maximum
coverage
requirements.
quire
100%
coverage
combined
with
high
accuracy.
The
EKF
(Enhanced
Kalman
Filter)
technology
is
the
best
way
to
combine
GPS
positioning
with
R
s
are
highly
configurable
(e.g.
Navigation
Settings,
SBAS
support,
Antenna
Supervision,
NMEA
protocol,
Baudrate
etc.).
•
Programmable
receivers
allow
firmware
upgrade
and
storage
of
customer
configuration
to
non-volatile
memory
(FLASH).
•
Low
cost
receivers
have
only
a
selected
number
of
start-up
configurations.
More
configurations
can
be
made
through
the
serial
port
and
stored
into
Battery
Backup
RAM.
•
ANTARIS
®
4
supports
standard
serial
communication
based
on
UART
technology.
LEA
and
NEO
modules
also
offer
an
integrated
USB
port.
Power consumption
•
ANTARIS
®
4
runs
on
an
optimized
Continuous
Power
Mode.
•
For
applications
with
defined
off
times
and
for
very
low
pow
Antenna
•
ANTARIS
®
4
receivers
support
active
and
passive
antennas
of
different
technologies
and
shapes.
•
The
antenna
short
circuit
detection
is
a
standard
feature
of
ANTARIS
®
4.
Antenna
open
circuit
detection
is
optional.
Acquisition
•
Whenever
Hot-
or
Warmstart
functions
are
needed,
a
backup
battery
is
required.
•
Different
sensitivity
settings
allow
an
acquisition
performance
optimized
to
user
requirements.
•
For
very
fast
start-
Navigation Performance/ GPS Techn
•
SuperSense
®
GPS
receivers
are
aimed
at
applic
•
Timing
receivers
allow
very
accurate
timing
output
even
if
only
one
satellite
is
available.
•
Dead
reckoning
receivers
target
automotive
applications,
which
re
GY O
and
speed
information
to
get
reliable
positioning
even
in
obstructed
areas
and
tunnels.
Configuration
•
ANTARIS
®
4
receiver
GPS
Modules
-
System
Integration
Manual
(SIM)
(incl.
Reference
Design)
System
Consideration
GPS.G4-MS4-05007-A1
Page 35
