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

 

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