3DM-GQ7
by Lord Sensing
Overview
The new 3DMGQ7 GNSS/INS is an all-in-one navigation solution featuring centimeter-level position accuracy. It is our first dual-antenna, RTK enabled INS designed for outstanding performance, even in unpredictable conditions. It is equipped with dual multiband GNSS receivers, low noise and low drift MEMS inertial sensors, and a robust adaptive Kalman filter.
Features
- Dual antenna GNSS
- Centimeter-level accuracy with RTK
- Tactical Grade IMU
- Advanced tightly-coupled extended Kalman filter (EKF) for sensor fusion
- Low profile and lightweight at 78 grams
- Adjustable sampling rates up to 1 kHz
- <2 deg/hour gyro bias instability
Applications
- Autonomous vehicle (AV) operation
- Wheeled and legged robotics
- Simultaneous localization and mapping (SLAM)
- Beyond visual line of sight (BVLOS) navigation
Specifications
| Position Accuracy | 2 cm with L1/L2 RTK corrections* |
| Velocity Accuracy | 0.05 m/sec |
| Attitude Accuracy | ±0.1° RMS roll & pitch ±0.25° RMS heading (typical) |
| Attitude Repeatability | 0.1° (typical) |
| Data Output Rate |
1 kHz IMU, Kalman Filter 2 Hz GNSS |
| Gyro In-Run Bias Stability |
1.5°/h
|
| Gyro Bandwidth/Range | 300Hz / ±300°/s |
| Accel In-Run Bias Stability |
0.05 ug
|
| Accel Bandwidth/Range |
225Hz / ±8g |
| Accel Noise Density |
20ug/√Hz |
| Interface | Dual Micro-D9, USB, RS-232, Dual MMCX |
| Protocols |
MIP, RTCM 3.1 |
| GNSS | GPS/QZSS, GLONASS, Galileo, BeiDou** |
| GNSS Freq Bands | L1C/A, L2C, L1OF, L2OF, E1B/C, E5b, B1I, B2I |
| Size | 76 mm x 68.6 mm x 13.3 mm |
| Weight | 78g |