your position is our focus
Contents
1
Dead Reckoning Fundamentals ...................................................................................7
1.1
Dead
Reckoning
enabled
GPS
(DR)..............................................................................7
1.2
Dead
Reckoning
Principle............................................................................................7
1.3
Dead
Reckoning
Performance .....................................................................................8
2
Design-In.....................................................................................................................10
2.1
Schematic
Design-In
Checklist
for
LEA-4R/TIM-4R .....................................................10
2.2
TIM-4R/LEA-4R
Design ..............................................................................................11
2.2.1
Forward
/
Backward
Indication............................................................................11
2.2.2
Odometer
/
Speedpulses.....................................................................................11
2.2.3
Power
Supply
for
Gyroscope,
Temperature
Sensor
and
A/D
Converter.................11
2.2.4
SPI
Interface
for
Gyroscope
and
Temperature
Sensor ..........................................12
2.3
Pinout
tables ............................................................................................................13
2.4
Layout
Design-In
Checklist
for
ANTARIS
®
4.................................................................14
2.5
Layout ......................................................................................................................14
3
Receiver Description...................................................................................................15
3.1
Dead
Reckoning
enabled
GPS
module
(DR
module)...................................................15
3.1.1
Architecture .......................................................................................................15
3.1.2
Input
Signals/
Sensors.........................................................................................17
3.1.3
DR
specific
Parameters .......................................................................................20
3.1.4
DR
Calibration....................................................................................................21
3.1.5
Storage
of
Parameters ........................................................................................23
3.1.6
Static
Position.....................................................................................................24
3.2
Power
Saving
Modes ................................................................................................24
3.3
Antenna
and
Antenna
Supervisor .............................................................................24
3.3.1
Open
Circuit
Detect............................................................................................24
4
Navigation ..................................................................................................................25
4.1.1
Overview............................................................................................................25
4.1.2
Navigation
Update
Rate......................................................................................25
4.1.3
Dynamic
Platform
Model ....................................................................................26
4.1.4
Static
Hold
Mode ...............................................................................................26
LEA-4R
/
TIM-4R
-
System
Integration
Manual
/
Reference
Design
Content
GPS.G4-MS4-05043
Page 4
