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aSense Navigation Systems DUAL-USE

Temperature-compensated MEMS and FOG inertial navigation with RTK GNSS, transfer alignment, and anti-jam/anti-spoof protection — built to keep navigating when GNSS is denied. Dual-use by design: the same aSense core powers commercial UAVs, marine robotics and industrial autonomy as well as defense platforms.

Inertial Measurement Units

aSense IMU Series

Built on MEMS technology with temperature compensation and low-noise gyroscopes and accelerometers, aSense IMUs provide high-accuracy inertial measurements for land, air and maritime platforms as well as munition systems.

Low-noise, temperature-compensated MEMS sensors
Compact 42.2 × 45 × 26.7 mm form factor, from 80 g
RS422/485 output interface
Foundation of the aSense INS family

Parameter	aSense110-IMU	aSense120-IMU	aSense130-IMU
Gyro Measurement Range	±500°/sec	±500°/2000°/sec	±500°/2000°/sec
Accelerometer Range	±8 g	±10/16/20/40/80 g	±10/16/20/40/80 g
Gyro Bias Repeatability (1σ)	≤30°/h	≤8°/h	1°/h
Gyro Bias Stability (1σ)	≤2.5°/h	≤1.1°/h	≤1.0°/h
Accel Bias Stability (1σ)	<0.05 mg	<0.02 mg	<0.01 mg
Angular Random Walk	≤0.15°/√hr	≤0.15°/√hr	≤0.08°/√hr
Scale Factor Repeatability	≤300 ppm	≤200 ppm	≤150 ppm
Axis Misalignment	≤0.5 mrad	≤0.5 mrad	≤0.5 mrad
Power / Interface	5V @145mA · RS422/485	5V @145mA · RS422/485	5V @145mA · RS422/485
Size / Weight	42.2 × 45 × 26.7 mm · 80 g	42.2 × 45 × 26.7 mm · 90 g	42.2 × 45 × 26.7 mm · 90 g

Integrated GNSS/INS

aSense INS Series

Combining aSense IMUs with an RTK-GNSS receiver compatible with all satellite constellations, the aSense INS family delivers precise position, velocity and orientation — with AHRS, barometer integration, dual-antenna heading, odometer/speed-log/air-data inputs and embedded transfer alignment.

MEMS EGI

aSense210-INS

Single-antenna GNSS/INS built on the aSense110-IMU. 0.015° pitch/roll, transfer alignment, AHRS and pressure-sensor support in a 60 × 68 × 22 mm package.

MEMS EGI · Dual Antenna

aSense310-INS

Dual-antenna GNSS/INS with 0.15° GNSS heading, stationary alignment and magnetometer/barometer fusion — in the same compact housing as the IMU.

MEMS EGI · Dual Antenna

aSense320-INS

Top of the MEMS line, built on the aSense120-IMU: 0.015° pitch/roll and 0.05° dynamic heading with dual-antenna GNSS and full aiding support.

Parameter	aSense210-INS	aSense310-INS	aSense320-INS
IMU	aSense110-IMU	aSense100-IMU	aSense120-IMU
Position Accuracy (H/V)	1 m / 1.5 m	1 m / 1.5 m	1 m / 1.5 m
Position Accuracy RTK (H/V)	0.01 m / 0.02 m	0.01 m / 0.02 m	0.01 m / 0.02 m
Velocity Accuracy	0.05 m/s	0.05 m/s	0.05 m/s
Pitch/Roll Accuracy	0.015°	0.1°	0.015°
Static/Dynamic Heading	— / 0.05°	1.0° / 0.15°	1.0° / 0.05°
GNSS Heading (dual antenna, 1 m baseline)	—	0.15°	0.15°
AHRS + Pressure Sensor	✓	✓	✓
Odometer + Speed Log + Air Data	✓	✓	✓
Dual Antenna	—	✓	✓
Transfer Alignment	✓	✓	✓
Power / Interface	5V @175mA · RS422/485	5V @175mA · RS422/485/UART	5V @205mA · RS422/485/UART
Size / Weight	60 × 68 × 22 mm · <150 g	42.2 × 45 × 26.7 mm · <200 g	78.7 × 70.1 × 26.1 mm · <200 g

GNSS-Denied Operation

External Aiding Matrix

When GNSS signals are lost or jammed, INS-only navigation accumulates errors from IMU bias drift. aSense systems correct INS estimates with external and internal aiding — reducing position drift, maintaining accuracy throughout outages longer than one hour, and staying reliable in high-dynamic maneuvers.

Reduce position drift over time
Maintain accuracy in GNSS outages beyond one hour
Velocity updates independent of external conditions
Correct INS errors in high-dynamic maneuvers

Aiding Source	Air	Land	Marine
Air Speed / Wind Sensor	●	—	—
Optic Flow	●	●	—
Radar Doppler Velocity	●	●	●
Wheel Odometer	—	●	—
Encoder	—	●	—
Speed Log	—	—	●
Doppler Velocity Log (DVL)	—	—	●
Radar/AIS · Radar/Coastal Map · Depth Sensor/Depth Map	—	—	●
External Position	●	●	●
External Attitude	●	●	●
External Velocity	●	●	●

NavigationDUAL-USE

Edge AIDUAL-USE

Air Data

Electronic Design