Septentrio unveils GNSS/INS receiver for drones

September 9, 2019  - By
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Septentrio has introduced a GNSS/INS receiver designed specifically for unmanned aerial vehicles (UAVs). The AsteRx-i S UAS combines GNSS technology with industrial-grade inertial sensor to provide high-accuracy, reliable positioning and 3D orientation (heading, roll, pitch) to aerial drones and other compact robotic systems.

Septentrio’s introduction of AsteRx-i S UAS builds on top of the success of the company’s existing UAV products, AsteRx m2 and m2a UAS. Its optimized SWaP (size, weight and power) increases UAV battery life resulting in longer flight times and improved productivity.


Septentrio will showcase the new AsteRx-i S at

  • ION GNSS+, Sept. 16-20, Miami, Florida, U.S.
  • Intergeo, Hall 1, Booth D1.040, Sept. 17-19, Stuttgart, Germany

Photo: Allison Barwacz

Photo: Allison Barwacz

This credit-card-sized receiver is designed for easy integration into any UAS (unmanned aerial system) and is compatible with popular autopilots such as Pixhawk and ArduPilot. It is a single-package GNSS/INS product, with an on-board IMU (inertial measurement unit) and standard connectors, allowing flexibility of sensor choice.

“Quick receiver integration makes the lives of our customers easier. It also speeds up their system’s time-to-market,” said Danilo Sabbatini, Product Manager at Septentrio. “Our goal was to combine a high-performance product with a simple and flexible plug-and-play integration design, suitable for any aerial system.”

Septentrio reliable centimeter-level positioning is based on multi-frequency, multi-constellation GNSS technology (GPS, GLONASS, Galileo, BeiDou, QZSS). AsteRx-i S UAS combines a GNSS receiver with a high-quality IMU to deliver reliable positioning together with 3D orientation.



Septentrio’s unique GNSS — IMU integration algorithm provides continuous positioning during short GNSS outages (coasting) which can happen in flight near high structures, under bridges or during banking turns.

AsteRx-i S UAS comes with built-in industry leading Advanced Interference Mitigation (AIM+) technology. In aerial drones, where lots of electronics are crammed into a small space, neighboring devices can emit electromagnetic radiation which interferes with GPS and GNSS signals.

AIM+ offers protection against such interference resulting in faster set-up times and robust continuous operation. A built-in power spectrum plot allows users to analyze interference, helping locate its source and mitigating it.

This article is tagged with and posted in Featured Stories, Latest News, OEM, UAV/UGV

About the Author:


Tracy Cozzens has served as managing editor of GPS World magazine since 2006, and also is editor of GPS World’s sister website, Geospatial Solutions. She has worked in government, for non-profits, and in corporate communications, editing a variety of publications for audiences ranging from federal government contractors to teachers.

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