Low Cost Dual Antenna Inertial Navigation System (INS‑DL)
Not every programme needs tactical-grade gyros. The INS-DL keeps the dual-antenna heading architecture of the INS-D and substitutes an industrial-grade IMU, which moves the unit into a price band that works for volume industrial and agricultural deployments.
What the trade-off actually costs you
Gyro in-run bias stability moves to 3 deg/hr, angular random walk to below 0.3 deg/√hr, accelerometer in-run bias to 0.01 mg at ±8 g. Free-inertial land drift becomes 0.5% DT rather than 0.2%. Pitch and roll settle at 0.08° static, 0.04° dynamic, 0.01° post-processed. Heading is unchanged where it matters most: 0.08° on a 2 m baseline with NovAtel OEM7720 or Septentrio mosaic-H, 0.2° with dual u-blox ZED-F9P.
Position and corrections
RTK holds 1 cm + 1 ppm CEP horizontal, 2 cm + 1 ppm vertical. SBAS 0.6 m, DGPS 0.4 m, post-processing 5 mm, TerraStar-C PRO 2.5 cm. Velocity accuracy 0.05 m/s RMS.
Who buys the INS-DL
Precision agriculture guidance, autonomous ground vehicles, satcom and radar antenna pointing, industrial heading stabilisation, low-cost aiming systems, and integrators building scanning payloads where budget per unit governs the design.
Specification summary
Enclosed 120.5 × 53.2 × 49.3 mm at 320 g, OEM 85.5 × 47.7 × 40.2 mm at 174 g. IP67 and MIL-STD-810G on the sealed version, MIL-STD-461F EMC. Supply 9–36 V DC, 5 W (6 W with the 64 GB logger). Optional TMGA calibration adds magnetometers; optional external stand-alone magnetic compass support is available on the .1234 interface variant.
Key features & functionality
- Excellent accuracy in GPS-Denied environments
- Industrial-grade IMU
- Support: ROS, LabVIEW, Waypoint Inertial Explorer, QINSy
- GPS, GLONASS, GALILEO, BEIDOU, SBAS, DGPS, RTK supported signals
- Fluxgate gyro-compensated compass to maintain free-inertial Heading (options)
- High-performance GNSS receivers
- Compatibility with LiDARs (Velodyne, RIEGL, FARO) and optical cameras
- Odometer, Wheel sensor, Airspeed sensor, Wind sensor aiding data
- Advanced, extendable, embedded Kalman Filter based sensor fusion algorithms
- State-of-the-art algorithms for different dynamic motions of Vessels, Ships, Helicopters, UAV, UUV, UGV, AGV, ROV, Gimbals and Land Vehicles
- Implemented ZUPT, ZARUPT, Tunnel Guide, GNSS tracking angle features
- Full temperature calibration, compact design, MIL-STD-810G/DO-160E
- Full integration with ArduPilot platform
INS-DL Main Specifications
| Parameter | INS-DL | INS-DL OEM |
|---|---|---|
| Heading Accurasy | 0.2° (2m baseline) / 0.4° (1m baseline) | 0.2° (2m baseline) / 0.4° (1m baseline) |
| Position Accuracy | 1cm (RTK), 60cm (SBAS) | 1cm (RTK), 60cm (SBAS) |
| Pitch & Roll Accuracy | 0.04° dynamic, 0.08° static | 0.04° dynamic, 0.08° static |
| GNSS Constellations | BDS, GAL, GLO, GPS, QZSS | BDS, GAL, GLO, GPS, QZSS |
| Corrections | PPK, RTK, SBAS | PPK, RTK, SBAS |
| Type of IMU | MEMS, Industrial-grade | MEMS, Industrial-grade |
| Magnetometer | External Magnetic Compass (optional) | External Magnetic Compass (optional) |
| Other Features | Affordable price, Industrial Grade IMU | Affordable price, Industrial Grade IMU |
| Size (mm) | 120.5 x 53.2 x 49.3 | 85.5 x 47.7 x 40.2 |
| Weight (gram) | 320 | 184 |
Related Products
Trademark Legal Notice: All product names, logos, and brands are the property of their respective owners. All company, product, and service names used in this document are for identification purposes only. Use of these names, logos, and brands does not imply endorsement. ABS, BeiDou, Cobham Limited, EdgeTech, Galileo, GLONASS, GPS, Hexagon, HYPACK, IMAGENEX, Kongsberg Seatex, LabVIEW, Livox, Norbit, NovAtel, NovAtel Inertial Explorer, Ouster, Qinsy, Quanergy, QZSS, R2Sonic, RIEGL, ROCK Robotic, ROS, Septentrio, Ship Motion Control SMC, Teledyne TSS, u-blox, Velodyne, WAASP, Waypoint.