INS-BU, New and ULTRA Low-Cost, U-Blox Based, Single Antenna GPS-Aided Inertial Navigation System

Paeonian Springs, VA: The new INS-BU is a high-performance strapdown system that determines position, velocity, and absolute orientation to any mounted platform. It utilizes a cost-effective, single-antenna U-Blox GNSS receiver that provides a 1 cm RTK position from RTCM3 RTK corrections and supports a wide range of GNSS constellations. Unlike other solutions, the INS-BU comes right off the shelf with full access to all significant constellations and frequencies: GPS L1/L2, GLO L1/L2, GAL E1/E5, BDS B1/B2, and QZSS L1/L2. Designed for UAVs, Land Vehicles, and Marine Vessels, the INS-BU is a practical, low-cost solution that uses various aiding data for different applications. With highly accurate navigation in GNSS-denied environments (utilizing the enhanced Tunnel Guide algorithm), the INS-BU delivers a comprehensive GNSS-denied solution at an unmatched price point.


One of the critical elements to the INS-BU’s success is its miniAHRS, which utilizes 3-axes of precision magnetometers, accelerometers, and gyroscopes to provide an orientation of the device under the measure. It contains cutting-edge algorithms for the motion of robots, unmanned and autonomous vehicles, and antennas. The miniAHRS mini fluxgate magnetometers have a distinct advantage over commonly used magneto-inductive or magneto-resistive alternatives and have been a trusted North reference for over 70 years.

The INS-BU provides a total navigation solution for both GNSS and GNSS-denied environments at an unparalleled value. With custom interfaces and a power consumption of two and a half Watts, the INS-BU is a versatile solution for many users with power consumption restrictions. In addition, the INS-BU contains the following:

  • Our onboard sensor fusion filter.
  • State-of-the-art navigation.
  • Guidance algorithms.
  • Calibration software.


The onboard ZED-F9P receiver ensures the security of positioning and navigation information by using secure interfaces and advanced jamming and spoofing detection technologies.

Inertial Labs, already the leader in position and orientation sensor technologies, is growing its catalog of innovative solutions at the best value, smallest size, and lowest power consumption. From commerce and industry to government, defense, and aerospace, Inertial Labs is at the forefront of developing and customizing products for exciting technologies, solving today’s problems, and unraveling those of tomorrow.


About Inertial Labs

Established in 2001, Inertial Labs is the leader in position and orientation technologies for commercial/industrial and aerospace/defense applications. With a worldwide distributor & representative network covering 20+ countries across six continents, a standard product offering that span from Inertial Measurement Units (IMU) up to full GPS-Aided Inertial Navigation Systems (INS), and an application breadth that covers Land, Air, and Sea; Inertial Labs covers the gambit of inertial technologies.

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