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3DM-GQ7-GNSS/INS Product Photo

3DM-GQ7-GNSS/INS

The 3DM-GQ7-GNSS/INS is a tactical-grade, dual-antenna GNSS-aided inertial navigation system that delivers centimeter-level positioning accuracy using RTK corrections and tightly-coupled sensor fusion via an advanced Extended Kalman Filter.

 

It features dual multiband GNSS receivers, low-drift MEMS inertial sensors, and robust heading performance immune to magnetic disturbances, making it ideal for autonomous systems and robotics in challenging environments.

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3DM-GQ7-GNSS/INS

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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.

Sensor

  • 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

Operation

  • 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

Package

  • Anodized Aluminum

  • Precision alignment features
  • Highly compact and low profile
    • 76 mm x 68.6 mm x 13.3 mm
    • 78 grams
  • USB and RS-232 interfaces
  • –40 to +85°C operating temperature range
3DM-GQ7-GNSS/INS Data Sheet Data Sheets English
4 Ways to RTK - One Pager Buyers Guide English
Product Comparison Test Report: 3DM-GQ7-GNSS/INS vs. 3DM-GX5-GNSS/INS Tech Notes English
3DM-GQ7 Firmware Change Log Tech Notes English
6212-3019 GNSS Antenna Accessory Guide English
ANN-MB GNSS Antennas Data Sheet Accessory Guide English
6212-3020 Adapter Cable Accessory Guide English
Micro D-to-USB Communication and Power Cable Accessory Guide English
6212-3021 Connectivity Kit, RS232/GNSS Cable & Antennas Accessory Guide English
9011-0058 PSA15R Wall Plug Adapter Accessory Guide English
6212-3018 Dual GNSS Antenna Kit Accessory Guide English
6212-3022 Connectivity Kit, USB/GNSS Cable & Antennas Accessory Guide English
6285-0100 RTK Modem Connectivity Kit Accessory Guide English
Micro-D to RS232 Communication and Power Cable Accessory Guide English
Craft Cable with Micro DB9 and Flying Leads Accessory Guide English
3DM-GQ7-GNSS/INS Magnetometer vs Dual-Antenna Heading in Fixed-Wing Aircraft Whitepaper English
3DM-GQ7 Assembly Drawing Technical drawing English
3DM-GQ7-GNSS/INS User Manual (Online) Manual/Operating manual English

Certificates and Approvals

3DM-GQ7 Declaration of Conformity (EU) Declaration of Conformity English
3DM-GQ7 Declaration of Conformity (UK) Declaration of Conformity English
3DM-GQ7-GNSS/INS
Type Inertial Navigation (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
Weight 2.751 oz
Size 76 mm x 68.6 mm x 13.3 mm
Size 2.99 in x 2.70 in x 0.52 in
Power Consumption 2.2 W
Input Voltage 4.2 V to 16 V
Minimum Operating Temperature -40 °C
Maximum Operating Temperature 85 °C
Minimum Operating Temperature -40 °F
Maximum Operating Temperature 185 °F
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

Todo lo que necesitas para comenzar

Accede al manual del usuario en línea completo de tu sensor. Encuentra instrucciones detalladas de configuración, procedimientos de calibración, guías de solución de problemas y especificaciones técnicas, todo en un solo lugar conveniente. 

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Software

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InertialConnect Screenshot - GNSS Statuses

InertialConnect is the latest software solution for MicroStrain inertial sensors. With InertialConnect, you can easily configure your sensors, adjust parameters, upgrade firmware, and deploy preconfigured parameter files. You can also verify sensor outputs with intuitive visualizations, including times eries data, position data, and statuses.

InertialConnect is compatible with both PC desktop and Linux operating systems, making it your go-to solution for precision and efficiency in inertial sensor management.

Learn More
sensorconnect-without-tag

SensorConnect is the next generation in desktop sensing software.

From configuration of nodes and starting networks, to collecting and analyzing data in real-time, SensorConnect provides a modern, powerful experience with our Wireless, Inertial, and Displacement products.

Using our intelligent data collection and graphing algorithms, you are able to visualize massive amounts of data instantly, and then zoom in on points of interest just as fast.

Built in MathEngine functionality allows for both real-time and post-processed math, such as generating FFTs, averages, RMS, etc.

Learn More
SensorCloud Laptop and Desktop

SensorCloud is a unique sensor data storage, visualization, and remote management platform that leverages powerful Cloud computing technologies to provide excellent data scalability, rapid visualization, and user programmable analysis.

MicroStrain sensors can instantly upload their data to SensorCloud via an ethernet-connected WSDA-2000. Once uploaded, your data is securely stored in the Cloud and can be accessed from anywhere, or downloaded for offline use.

Configurable alerts can be set to help notify you of real-time event in your data.

MathEngine allows you to perform analytics on your data, all in the Cloud. Pre-built functions are available for ease of use, while IPython Notebooks allow advanced users to write custom scripts to be run on their data once, or on a schedule.

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logo-rtkapp sensorcloud

SensorCloud RTK is a multi-continent, IP-based RTK cloud network that delivers centimeter-level position accuracy from day one without complex setup, featuring network coverage across the U.S., Europe and beyond.

When paired with compatible MicroStrain navigation systems, it offers seamless scalability from development to production with professional technical support throughout.

Visit RTK.Sensorcloud navigate_next
mscl-logo

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 baremetal 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.

Learn More About MSCL

Built for ROS

Robot Operating System (ROS) is an open-source, meta-operating system for your robot. It provides the services you would expect from an operating system, including hardware abstraction, low-level device control, implementation of commonly-used functionality, message-passing between processes, and package management. ROS can be used in building and simulating robotics applications, as well as unmanned ground vehicles and simultaneous localization and mapping (SLAM). MicroStrain has an open source License free (MIT License) series of drivers specifically designed and tested for ROS.

Read More east
ros_logo

El 3DM-GQ7-GNSS/INS es un sistema de navegación inercial (INS) de grado táctico con capacidad integrada de sistema global de navegación por satélite (GNSS). Combina receptores GNSS multibanda duales con sensores inerciales de alto rendimiento y posicionamiento cinemático en tiempo real (RTK) para ofrecer precisión de posición a nivel de centímetros para aplicaciones de navegación autónoma.

El cinemático en tiempo real (RTK) es una técnica de navegación por satélite que proporciona precisión de posicionamiento a nivel de centímetros utilizando datos de corrección de una estación de referencia. La capacidad nativa de RTK del 3DM-GQ7-GNSS/INS permite un posicionamiento preciso para aplicaciones que requieren alta precisión, como la agricultura de precisión, la topografía y la navegación de vehículos autónomos.

SensorCloud RTK es la red de nube RTK basada en IP de HBK, que ofrece precisión a nivel de centímetros sin la necesidad de una configuración compleja de estación base. Cuando se empareja con el módem 3DM-RTK, proporciona correcciones RTK sin interrupciones y listas para usar en EE. UU., Europa y más allá, con soporte técnico profesional.

GNSS de doble antena utiliza dos antenas separadas para determinar la dirección de rumbo con una precisión de 0.25° que es inmune a las perturbaciones magnéticas. Esto proporciona información de rumbo confiable incluso en entornos con interferencia magnética, lo que lo hace superior a los sistemas de rumbo basados en magnetómetros.

El 3DM-GQ7-GNSS/INS es ideal para:

  • Operación de vehículos autónomos (AV)
  • Navegación de drones más allá de la línea visual (BVLOS)
  • Robótica con ruedas y patas
  • Localización y mapeo simultáneos (SLAM)
  • Agricultura de precisión y topografía
  • Sistemas autónomos marinos
  • Automatización industrial que requiere posicionamiento preciso

Sí, la IMU de grado táctico con inestabilidad de sesgo <2°/hr proporciona una precisión de posición excepcional durante interrupciones de GNSS. El resistente Filtro de Kalman Extendido Auto-Adaptativo mantiene la capacidad de navegación cuando las señales de satélite no están disponibles o están degradadas.

Por supuesto. El sistema cuenta con tasas de muestreo ajustables de hasta 1 kHz y un avanzado Filtro de Kalman Extendido acoplado estrechamente diseñado para un rendimiento excepcional en condiciones dinámicas, lo que lo hace ideal para plataformas de alta velocidad y aplicaciones de alta aceleración.

Sí, MicroStrain proporciona controladores ROS de código abierto con licencia MIT específicamente diseñados y probados para el 3DM-GQ7-GNSS/INS, lo que permite una integración fluida con aplicaciones robóticas y sistemas autónomos basados en ROS.

El Filtro de Kalman Extendido Auto-Adaptativo es un algoritmo avanzado de fusión de sensores que se ajusta automáticamente a las condiciones ambientales y dinámicas cambiantes. Proporciona una integración acoplada estrechamente de datos de GNSS e inerciales, asegurando un rendimiento óptimo y un rechazo robusto de anomalías en condiciones desafiantes.

El sistema utiliza receptores de múltiples constelaciones con 184 canales de seguimiento cada uno para un seguimiento de señal robusto, un cabezal de doble antena inmune a interferencias magnéticas, rendimiento de IMU de grado táctico y algoritmos avanzados que proporcionan un rendimiento dinámico excepcional y rechazo automático de anomalías.

El 3DM-GQ7-GNSS/INS ofrece el rendimiento táctico de mayor precisión en un paquete compacto de 78 gramos, con capacidad RTK nativa, dirección de doble antena y una solución completa de un solo proveedor que incluye correcciones RTK basadas en la nube, características que normalmente se encuentran solo en sistemas mucho más grandes y costosos.

Sí, como parte de la línea de productos MicroStrain de HBK, el 3DM-GQ7-GNSS/INS es compatible con la NDAA, lo que lo hace adecuado para aplicaciones gubernamentales y de defensa de EE. UU.

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© 2026 Hottinger Brüel & Kjær

 

 

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