Parker MicroStrain 3DM-GQ7-GNSS/INS Tactical Grade RTK Enabled Navigation System Owner’s Manual
- June 9, 2024
- Parker
Table of Contents
MicroStrain 3DM-GQ7-GNSS/INS
Tactical Grade RTK-Enabled
Navigation System
Owner’s Manual
Setting the Standard in Inertial Navigation:
The MicroStrain 3DM-GQ7-GNSS/INS is a complete RTK-enabled navigation solution
featuring centimeterlevel 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-GQ7GNSS/INS continues to build upon that legacy and
includes a host of new features that ensure optimum performance in even the
most demanding applications.
Product Features:
| 1.5°/h Gyro Bias Instability
---|---
| Dual Antenna GNSS Heading
| Centimeter Level Accuracy with RTK
| Adjustable Sampling Rates Up to 1 KHz
| Tactical Grade IMU
| Advanced Tightly-Coupled EKF
| Lightweight (78g) and Low Profile
MicroStrain 3DM-GQ7-GNSS/INS Specifications
System Performance
Position
Single Point, Horizontal[1]| 1.25 m
Single Point, Vertical[1]| 2 m
RTK [1,2]| 2 cm
Attitude
Roll, Pitch| 0.05°
Heading[3]| 0.25°
Dynamic
Velocity| 0.05 m/s
IMU
| Accelerometer| Gyroscope| Magnetometer| Barometer
---|---|---|---|---
Range| ±8 g| ± 300 °/s| ±8 Gauss| 260 to 1260 mbar
Random Walk| 20 µg/√Hz| 0.15 °/√h| –| –
Bias Instability| 5 µg| 1.5 °/h| –| –
Noise Density| 20 µg/√Hz| 8.75 °/h/√Hz| –| –
Turn-on to Turn-on Bias[4]| 50 µg| 0.002 °/s| –| –
Bias Error Over Temperature| 0.4 mg| 0.03 °/s| –| –
Scale Factor Error Over Temperature| 600 PPM| 1000 PPM| –| –
Interface
Connectors | 2x Micro-D9 |
---|---|
Communications Interface | 2x RS-232, 2x USB |
GNSS Antenna Ports | 2x MMCX |
Output Data Rate (IMU and EKF) | 1 to 1000 Hz |
External Aiding Input | RTCM 3.1, GNSS, Odometer, Heading |
I/O | 4x GPIO |
GNSS
Number of Receivers | 2 |
---|---|
Channel Count | 184 |
Constellations | GPS/QZSS, GLONASS, Galileo, BeiDou*, SBAS |
Frequencies | L1C/A, L2C, L1OF, L2OF, E1B/C, E5b, B1, B2 |
Operational Limits | Altitude 50,000 meters, Velocity 500 m/s |
[*] BeiDou support to be provided in future firmware release
Physical and Electrical
Weight | 78 g |
---|---|
Size | 76 mm x 68.6 mm x 13.3 mm |
Power Consumption | 2.0 W (Typical), 2.5 W (Max) |
Operating Voltage | 5 to 16 VDC |
GPIO Voltage | 5 V |
Operating Temperature | -40°C to 85°C |
Antenna Output Voltage | 3 V |
Antenna Output Current | 100 mA |
MTBF | 389,237 hours (Telecordia Method, GM/35C) |
[1] 24 hour static, RMS
[2] 1 cm + 1 ppm, 2 cm at 10 km from base station
[3] Dual antenna, RMS, 1.5 m baseline
[4] Bias repeatability, <24 hours
MicroStrain 3DM-GQ7-GNSS/INS Allan Variance (AVAR)
MicroStrain 3DM-RTK
Minimizing your time to market by removing the need for base station
infrastructure
The MicroStrain 3DM-RTK Cellular Correction Modem transmits easy-to-use Real
Time Kinematic (RTK) correction data to be utilized by the 3DM-GQ7-GNSS/INS.
It provides the simplicity of a cellular connection to our SensorCloud RTK
base station network, replacing cumbersome radiobased stations.
With RTK corrections the 3DM-GQ7 can achieve centimeter-level positional
accuracy.
3DM-RTK Specifications
Output Data Rate | 1 Hz |
---|---|
Interface | Micro-D9, RS 232, USB |
Protocols | MIP, RTCM 3.1, NMEA |
Cellular Network | Cellular Coverage: Global* |
Voltage | 5 to 16 VDC |
Power | 1.0 W (Typical), 2.0 W (Max) |
Weight | 48 g |
[*] Some regional restrictions apply. Coverage only where LTE CAT-M1/2G deployment is available.
SensorConnect is PC software for sensor configuration and data collection.
Configure inertial parameters, device settings, data channels, and sample
rates.
Visualize massive amounts of data instantly using built-in intelligent data
collection and graphing algorithms. Create immersive dashboards with rich data
visualization.
MSCL™ API and MIP SDK
The MicroStrain Communication Library (MSCL) is our open-sourced API that
simplifies writing code to interact with our sensors. MIP SDK is a lightweight
C/C++ library for interacting with MicroStrain G and C-series products via
bare-metal and resource constrained microcontrollers.
Both APIs are readily available and fully-documented on GitHub, featuring
valuable tools such as full documentation, example code, and a quick start
guide.
MicroStrain offers an open source, license-free (MIT License) series of
actively supported drivers specifically designed and tested for Robot
Operating System (ROS).
Use ROS for building and simulating robotics applications, unmanned ground
vehicles (UGVs) and simultaneous localization and mapping (SLAM).
Seamless cloud-based network RTK corrections. Plug and play functionality with
our 3DM-RTK modem allows for fast, easy deployment across the globe.
Get started instantly with our commitment-free subscription service, available
immediately after registration.
phone +1 802 862 6629
microstrainsales@parker.com
www.parker.com/microstrain
©2023 Parker Hannifin Corporation | Document 8400-0139 Revision B | Subject to
change without notice.
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