3DM-GQ7-GNSS/INS
By MicroStrain by HBK
• Up to 1 cm + 1 ppm positional accuracy with RTK
• Multi-frequency GNSS receivers provide 1.2m single point L1/L2 position accuracy
• Multi-constellation receivers with 184 tracking channels each allow for rapid signal
acquisition and robust signal tracking in challenging GNSS environments
• Dual GNSS antenna heading with 0.2° heading accuracy that is immune to magnetic disturbances
• Tactical grade IMU with <2°/hr bias instability provides exceptional position accuracy during GNSS outages
• 0.05° pitch/roll accuracy
• Accepts standard RTCM real-time kinematic (RTK) corrections
• Adjustable sampling rates up to 1KHz
• 34 state auto-adaptive EKF
• Independently configurable IMU, GNSS, EKF outputs
• Forward compatible MIP Protocol optimizes bandwidth
• SensorConnect software for configuration, control, display, and logging
• MSCL open source API for easy integration
Description
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3DM-GQ7-GNSS/INS
The MicroStrain 3DM-GQ7-GNSS/INS is a complete RTK enabled navigation solution featuring centimeter-level
position accuracy.
The system includes dual multiband GNSS receivers, low-noise and low-drift MEMS inertial sensors, and a
robust Adaptive Extended Kalman Filter (EKF).
MicroStrain sensors have set the standard for inertial sensor performance for over 20 years.
The 3DM-GQ7-GNSS/INS continues to build upon that legacy and includes a host of new features that ensure
optimum performance in even the most demanding applications.The MicroStrain 3DM-GQ7-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.
When paired with our 3DM-RTK Modem and SensorCloud RTK corrections service, the 3DM-GQ7-GNSS/INS is the best single-vendor RTK navigation solution available.
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Specifications
3DM-GQ7-GNSS/INS Performance Grade Tactical Grade Features Accelerometer, Gyroscope, Magnetometer Random Walk Accel: 20 µg/√/Hz, Gyro: 0.15 °/√hr Bias Instability (Gyroscope) 1.5 °/hr Bias Instability (Accelerometer) 5 μg Hysteresis Accel bias: 0.4 mg, Accel gain: 600 PPM, Gyro bias: 0.3 °/s, Gyro gain: 1000 PPM Communication Port Type 2 x Micro D9 Communication Interface RS-232, USB Update Rate IMU: 1000 Hz, EKF: 1000 Hz, GNSS: 2 Hz Inputs/Outputs 4xGPIO Weight 78 g Size 76 mm x 68.6 mm x 13.3 mm Power Consumption 2.2 W Input Voltage 4.2 V to 16 V Minimum Operating Temperature -40 °C Maximum Operating Temperature 85 °C MTBF 389237 h GNSS Constellations GPS/QZSS, GLONASS, Galileo, BeiDou GNSS Frequency Bands L1C/A, L2C, L10F, LSOF, E1B/C, E5B, B1, B2 GNSS Input(s) Onboard Receiver(s) Sensing Range (Accelerometer) 8 g Sensing Range (Gyroscope) 300 °/s Sensing Range (Magnetometer) 8 Gauss Sensing Range (Pressure) 1260 mbar Accuracy Horizontal Position (single point): 1.25 m, Vertical Position (single point): 2 m, Horizontal Position (RTK): 0.02 m, Vertical Position (RTK): 0.02 m, Velocity accuracy (single point): 0.1 m/s, Velocity accuracy (RTK): 0.05 m/s, Roll/Pitch: 0.05 °, Heading (dual antenna): 0.25 ° Ingress Protection Rating Not Rated Housing Material Aluminum Software MSCL, ROS, SensorConnect Mounting Style Screw Down, Precision Alignment