MEMS-Based Inertial Navigation Systems for Unmanned Systems - IMU/AHRS, GNSS/INS

VectorNav Technologies

VectorNav is a leading innovator in high performance embedded navigation systems using the latest miniature solid-state MEMS inertial sensor and GPS/GNSS technology.

VN-100 Surface Mount Miniature INSWith a strong background in Aerospace Engineering and experience in the development and testing of spacecraft, launch vehicles, and micro-aerial vehicles, VectorNav brings high performance Aerospace filtering and calibration techniques into the world of low-cost industrial grade MEMS sensors, expanding the possibilities of today’s MEMS sensor technology.

Tactical Series

Tactical-Grade IMU/AHRS, GNSS/INS & Dual Antenna GNSS/INS

Tactical Series MEMS Inertial Navigation SolutionsThe Tactical Series range of high-performance, MEMS-based, inertial navigation systems features IMU, AHRS, GPS/INS and GPS-Compass solutions designed for a wide range of demanding applications and operating environments.

Encased in a ruggedized aluminum housing, the Tactical Series is built around a compact tactical-grade MEMS IMU core. Our industry leading algorithms provide high-accuracy position, velocity, and attitude estimates along with compensated inertial measurements at rates up to 800 Hz.

Each unit undergoes an extensive individual sensor calibration across the full operating temperature range (-40°C to +85°C) for bias, scale factor, misalignment, temperature dependancies and gyro g-sensitivity.

VN-110 MEMS Inertial Navigation System  VN-210 MEMS Inertial Navigation System  VN-310 MEMS Inertial Navigation System
Model VN-110  IMU/AHRS VN-210 GNSS/INS VN-310 Dual GNSS/INS
IMU Measurements
Magnetic Heading
Attitude Filter (VPE1)
INS FIlter
GPS-Compass Heading
Size 56 x 56 x 23 mm 56 x 56 x 31 mm 56 x 56 x 31 mm
Weight 125 g 155 g 160 g
1 VectorNav Processing Engine, VectorNav’s proprietary suite of attitude estimations and toolboxes.

Key Benefits:

  • < 1˚/hr in-run gyro bias stability
  • < 2 mrad attitude performance
  • 4 GB onboard memory for data logging
  • ITAR-free
  • IP 68 rated enclosure designed to meet DO-160G
  • Software compatible with Industrial Series
  • Expansion port for connectivity to external sensors
  • Made in the USA

More: Tactical Series MEMS Inertial Navigation Systems

Industrial Series

Miniature Industrial-Grade IMU/AHRS, GPS/INS & Dual Antenna GNSS/INS

Industrial Series Inertial Navigation Systems

The Industrial Series is a range of MEMS-based, industrial-grade inertial navigation solutions. The Series includes IMU, AHRS, GPS/INS and GPS-Compass systems optimized for SWaP-C constrained applications and challenging operating environments.

Industrial Series Rugged and Surface Mount INSAvailable in both surface mount and rugged packaging options, each product in the Industrial Series is built on a miniature, high-performance, temperature-calibrated IMU core. Each unit shares a common protocol and interface, allowing the user to incorporate AHRS, GPS/INS and/or GPS-Compass functionality into their application depending on the planned usage and performance requirements.

The Industrial Series Rugged option offers a simple, bolt-on, plug-n-play solution designed for easy testing and integration. The Industrial Series surface mount (SMD) option is a compact solution designed to be fully integrated into a host PCB.

 VN-100 Rugged INS  VN-200 Rugged INS VN-300 Rugged INS
Model VN-100  IMU/AHRS VN-200 GPS/INS VN-300 Dual GNSS/INS
IMU Measurements
Magnetic Heading
Attitude Filter (VPE1)
INS FIlter
GPS-Compass Heading
Surface Mount
36 x 33 x 9 mm
24 x 22 x 3 mm
36 x 33 x 9.5 mm
24 x 22 x 3 mm
45 x 44 x 11 mm
24 x 22 x 3 mm
Surface Mount
15 g
3.5 g
16 g
4 g
30 g
1 VectorNav Processing Engine, VectorNav’s proprietary suite of attitude estimations and toolboxes.

Key Benefits:

  • Miniaturized surface mount & Rugged packaging
  • 0.3˚ RMS heading, 0.1˚ pitch & roll
  • 5˚/hr typical in-run gyro bias stability
  • Calibrated across temperature
  • Serial TTL, SPI & USB communication interfaces
  • < 30 grams
  • ITAR-free
  • Made in the USA

More: Industrial Series MEMS Inertial Navigation Systems

Applications of our Inertial Navigation Systems

AHRS/IMU for Ground Based Robotics

Unmanned Ground RobotGround based robotic vehicles operate in a wide range of environments where magnetic interference often makes heading determination difficult. The VN-100 range utilizes proprietary adaptive filtering and disturbance rejection algorithms which provide more accurate and stable heading measurements when magnetic interference is present. Vibration from nearby electric motors can be eliminated utilizing the on-board adaptive filtering capabilities provided by the Vector Processing Engine algorithm.

AHRS/IMU for Unmanned Underwater Vehicles UUV

Unmanned Underwater VehicleThe VN-100 range is well suited for underwater vehicle applications where precise heading, pitch and roll measurements are required. The sensor is capable of operation in any orientation and is not hostage to problems associated with gimbal lock. VN-100 is the only Attitude Heading Reference Sensor in its class to offer on-board hard & soft iron calibration capabilities This allows the sensor to compensate for magnetic distortion from nearby electric motors and batteries while in the field.

GPS/INS for Unmanned Aerial Vehicles

Unmanned Aerial VehicleThe VN-200 provides exceptional performance for autonomous control of unmanned aerial platforms. With an update rate of 200 Hz, high bandwidth, low-latency position and attitude measurements can be directly connected to the necessary control loops. The VN-200 calibration procedures ensure a high accuracy pitch and roll solution relative to the horizon while the on-board barometric pressure sensors provide autonomous aircraft with greater ability to precisely hold altitude.

GPS/INS for Camera Stabilization

The high pointing accuracy and low latency of the VN-200 makes it well suited for airborne camera stabilization applications. Utilizing the GPS and pressure sensor measurements together with the inertial sensor measurements, the onboard INS algorithm estimates absolute heading to better than 1 degree in yaw, pitch and roll in dynamic environments.

GPS/INS for Marine Antenna Stabilization

Marine Antenna StabilizationMaritime VSAT satellite communications require stabilized antennas that remain pointed at the satellite in order to ensure continuous data transmittal. Regulations require that pointing accuracies remain better than 0.5 degrees to maintain active transmission. This requirement demands highly accurate, precise and low latency attitude and angular rate measurements.

The dynamic motion common to rough sea conditions makes this a difficult task for most industrial grade MEMS-based inertial navigation systems. The VN-200 GPS assisted inertial navigation algorithm is capable of compensating for dynamic acceleration induced from the motion of the vessel while maintaining accurate orientation measurements. With a full filter state update rate of 200 Hz, the VN-200 provides extremely low latency attitude and angular rate measurements, critical for closed-loop control.

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