Aldebaran FOG Inertial Navigation System

Navigation system built around closed loop Fiber-Optic Gyroscopes and high-performance MEMS accelerometers for high vibration environments. The system has integrated multi-band, multi-constellation GNSS receiver and delivers superior performance during extended periods of GNSS outage.

Aldebaran combines top-of-the range tactical sensors – closed loop 0.1˚/hr. (BI) fiber-optic gyros and <1mg (long term bias) accelerometers to deliver dependable GNSS denied performance in rough, offroad and bumpy terrain.


The gyros hold their bias under vibrations and Aeron’s proprietary sensor fusion algorithms delivers superior navigation and position performance. Aldebaran INS has an integrated L1/L2/L5 GNSS receivers supporting multiple constellations that include GPS, GALILEO and NAVIC.

Product Features

MIL Qualified INS-GNSS System where you need tactical performance in high vibration environments.

Excellent IMU performance under vibrations with closed loop fiber-optic gyroscopes and high-performance accelerometers with 1 mg long term bias repeatability.

Suitable for land navigation in GNSS compromised scenarios delivering <0.3% distance travelled drift even in long term GNSS outages.

Accepts ground speed aiding over CAN and on pulse odometer and accepts external position, speed and heading alignment inputs.

Protecting the device electronics from electromagnetic interferences and transients on power and data lines.

Wide array of isolated interfaces and protocols are available on Aldebaran including Binary and NMEA over Serial RS422 and RS232.

Complete and Continuous Built in Test (CBIT) to monitor and inform user about the system health parameters that include sensor health.

Aldebaran INS accepts external position, speed, heading aiding input from master or external reference system.

Aeron’s proprietary EKF based sensor fusion engine provide exceptional performance in GNSS denied conditions.

Technical Specifications

  • Accelerometer
  • Gyro
  • Position
  • Attitude
  • Heading
  • Gnss
  • Barometer
  • Electrical
  • Physical
  • Environment
  • Hardware Design Compliance
Bias Instability
15 μg
Bias Repeatability
1.2 mg
Raw Bandwidth
1 kHz
Bias Instability
Angle Random Walk
Horizontal Position With RTK
<0.8 cm
Horizontal Position With GNSS
1.5 m
Horizontal Position With SBAS
1 m
Horizontal Position With External Odometer
0.3% of DT
Vertical Position With RTK
< 2 cm
Vertical Position With GNSS
2.5 m (1σ)
Vertical Position With SBAS
1.5 m (1σ)
Vertical Position with Barometer
2 m (1σ) relative
Velocity with GNSS
0.05 m/s RMS
Roll Range
±180 ̊
Pitch Range
±90 ̊
Roll/Pitch Accuracy
±0.05° (2σ) (Static/ Low dynamics)
Roll/Pitch Accuracy
±0.1°(1σ) Dynamic
Roll, Pitch Resolution
0.01 ̊
Heading Range
±180 ̊
Heading Accuracy
±0.05° (2σ) (Static/ Low dynamics)
Heading Accuracy
±0.01° (1σ) (Dynamic)
0.01 ̊
Multi channel, L1/ L2/ L5 Code / Carrier phase GPS, GLONASS, QZSS, BEIDOU and IRNSS/NavIC
Diff. Correction Type4
RTCMv2, RTCMv3, CMRv2 (for RTK mode)
TTFF Cold Start
45 Sec
Reacquisition Time
1 Sec
TNC Socket
300 - 1100 hPa
±1 hPa
Input Voltage
12 - 32 V DC
Power Consumption
< 10 W
Update Rate
100 Hz (Navigation)
Update Rate
200 Hz (Raw Measurement)
RS232(CH1), RS232(CH2), RS422 x 2, 1PPS
Data Format
NMEA / Binary
External Inputs
GNSS, Magnetometer, Air Speed (TAS), Position & Speed
172.4 mm (L) X 155 mm (W) X 114 mm (H)
2.5±0.05 Kg
IP Protection
IP 65
Operating Temperature
-40 to +71 °C
Storage Temperature
-55 to +85 °C
Power Supply
Environmental Tests

Documents & Softwares

Q & A

Can we provide external aiding and alignment?

Yes, Aldebaran INS can accept external aiding and alignment

What is the performance in GNSS denied conditions?

Aldebaran INS can deliver < 0.3% of distance travelled performance in GNSS denied conditions.

User Manual