Parker MicroStrain 3DM-GQ7-GNSS/INS Tactical Grade RTK Enabled Navigation System Owner’s Manual

June 9, 2024
Parker

MicroStrain 3DM-GQ7-GNSS/INS
Tactical Grade RTK-Enabled
Navigation System
Owner’s Manual
Parker MicroStrain 3DM GQ7 GNSS INS Tactical Grade RTK
Enabled Navigation System -

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.Parker MicroStrain 3DM GQ7 GNSS INS Tactical
Grade RTK Enabled Navigation System - fig 1

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

https://prker.co/3QvDWft

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

Parker MicroStrain 3DM GQ7 GNSS INS Tactical Grade RTK Enabled Navigation
System - Specifications

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)

Parker MicroStrain 3DM GQ7 GNSS INS Tactical Grade RTK Enabled Navigation
System - Allan Variance

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.Parker MicroStrain 3DM GQ7 GNSS INS Tactical Grade RTK Enabled
Navigation System - software for sensor

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.Parker MicroStrain 3DM GQ7 GNSS INS Tactical
Grade RTK Enabled Navigation System - Seamless

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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References

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