Octantis Inertial Navigation Systems

Octantis Inertial Navigation Systems are tactical grade GNSS aided MEMS based Inertial Navigation Systems (INS-GPS), for precise position, attitude and orientation information.

Octantis Inertial Navigation Systems are tactical grade GNSS aided MEMS based Inertial Navigation Systems (INS-GPS), for precise position, attitude and orientation information. Octantis is a MIL spec NAV system integrated with multi-constellation GNSS. The system runs a multi-mode Kalman filter making it suitable for high and low dynamic applications. In addition, it makes use of vibration suppressing high quality (1 deg/hr.) gyros. This system is very compact and space efficient.

Features:

 


Accurate orientation and navigation data

Ethernet interface

Isolated power supply and interfaces

Advanced statistical filtering

Vibration resistant

High refresh rates

High MTBF

Specifications

Parameter Name Parameter Value
OCTANTIS 2
NS6300S NS6500T NS7300D
Acceleration
Range ± 15 g$ ± 15 g$ ± 15 g$
Noise Density 160 ug/√Hz 160 ug/√Hz 160 ug/√Hz
Resolution 0.1 mg 0.1 mg 0.1 mg
Bias ± 1.5 mg ± 1.5 mg ± 1.5 mg
Angular Rate
Range ±480°/s (upgradable upto 1900°/s)
Optional Redundant Gyro with range ±2000°/s
±480°/s (upgradable upto 1900°/s)
Optional Redundant Gyro with range ±2000°/s
±480°/s (upgradable upto 1900°/s)
Optional Redundant Gyro with range ±2000°/s
Noise Density 0.006 °/s/ √Hz 0.006 °/s/ √Hz 0.006 °/s/ √Hz
Bias Stability < 1°/hr < 1°/hr < 1°/hr
Position & Velocity Accuracy
Position 1m CEP with SBAS,
2.5m CEP with L1 GNSS,
16 m/min without aiding,
2% of DT with external Odometer1 / external Air Data Computer
1m CEP with SBAS,
2.5m CEP with L1 GNSS,
16 m/min without aiding,
2% of DT with external Odometer1 / external Air Data Computer
2.5m CEP with L1 GNSS,
2.5cm CEP with RTK,
0.5m with DGPS correction,
16m/min without aiding,
2% of DT with external Odometer1 / external Air Data Computer
Velocity < 0.2 m/s with GNSS,
< 0.8 m/s (in 1 min) w/o GNSS and external aiding
< 0.2 m/s with GNSS,
< 0.8 m/s (in 1 min) w/o GNSS and external aiding
< 2 cm/s with RTK
0.2 m/s with GNSS (w/o RTK)
< 0.8 m/s (in 1 min) w/o GNSS and external aiding
Attitude
Roll Range ±180° ±180° ±180°
Pitch Range ±90° ±90° ±90°
Roll, Pitch Accuracy2 0.15° (2.5 Mil) with GNSS aiding 0.15° (2.5 Mil) with GNSS aiding 0.15° (2.5 Mil) with GNSS aiding
Heading Range ±180° ±180° ±180°
Heading Accuracy 0.5° 0.33° 0.5°
Angle Resolution < 0.01° < 0.01° < 0.01°
Magnetometer
Range ± 4 gauss ± 4 gauss ± 4 gauss
GPS / GNSS
Type 72 channels L1, GNSS (GPS, GLONASS, Beidou, GAGAN, Galileo, SBAS) 72 channels L1, GNSS (GPS, GLONASS, Beidou, GAGAN, Galileo, SBAS) 136 or 544 channel 25Hz,
L1/ L2 Code / Carrier phase
GPS & GLONASS
TTFF Cold Start 26 s 26 s 26 s
Reacquisition Time 1 s 1 s 1.2 s
GPS Modules 1 2 1
Electrical
Input Voltage 20-30 VDC (isolated) 20-30 VDC (isolated) 20-30 VDC (isolated)
Power Consumption 5W 5W 6W
Connector D38999 series III D38999 series III D38999 series III
Physical
Weight 900gms approx. 900 gms approx. 900 gms approx.
Size 142 mm (W) x 115 mm (B) x 62.10 mm (H) 142 mm (W) x 115 mm (B) x 62.10 mm (H) 142 mm (W) x 115 mm (B) x 62.10 mm (H)
Update Rate 10Hz / 50Hz 10Hz / 50Hz 10Hz / 50Hz
Data Format NMEA / Binary NMEA / Binary NMEA / Binary
External I/Ps Odometer Odometer Odometer
Output Parameters Euler angles, Position in Geodetic, Body Accelerations, Body Rates, Quaternion
Environmental
Operating Temperature -40°C to +80°C -40°C to +80°C -40°C to +80°C
Storage Temperature -45°C to +90°C -45°C to +90°C -45°C to +90°C
Humidity 10% to 90% RH (non – condensing) 10% to 90% RH (non – condensing) 10% to 90% RH (non – condensing)
Survival Shock upto 20g upto 20g upto 20g
IP Protection IP67 IP67 IP67
Vibration 0.04 g^2/vHz 0.04 g^2/vHz 0.04 g^2/vHz
MTBF 44000 hours 44000 hours 44000 hours
EMI / EMC As per MIL-STD-461F As per MIL-STD-461F As per MIL-STD-461F
Environmental Tests As per MIL-STD-810G As per MIL-STD-810G As per MIL-STD-810G
Interfaces
I1 I2 I3 I4
Interface options for NS6300S, NS6500T, NS7300D RS232 (isolated),
RS422 (isolated),
Ethernet (isolated TCP/UDP),
1PPS from GNSS,
10MHz disciplined clock
RS232 (isolated),
RS422 (isolated),
MIL 1553
Ethernet (isolated TCP / UDP),
1PPS from GNSS,
10MHz disciplined clock
RS232 (isolated),
RS422 (isolated),
MIL 1553
ARINC 429
Ethernet (isolated TCP / UDP),
1PPS from GNSS,
10MHz disciplined clock
RS232 (isolated),
RS422 (isolated),
MIL 1553
CAN Bus
Ethernet (isolated TCP / UDP),
1PPS from GNSS,
10MHz disciplined clock

$ – Customized options upto 50 g available
1 – 0.5 – 2 %, subject to Odometer accuracy
2 – 1σ, Static accuracy – in magnetic environment
3 – 1σ, Static accuracy after magnetic calibration. In NS6500T, the base line between two GNSS antenna is 1m minimum.
4 -Time to First Fix

 

Applications


Inertial guidance for airborne vehicles

Inertial guidance for naval applications

Inertial navigation for armoured vehicles