GNSS/INS Receiver Developed Specifically for Unmanned Aerial Systems

Leading GPS/GNSS positioning technology experts, Septentrio, has introduced a new GNSS/INS receiver designed specifically for the UAVs (Unmanned Aerial Vehicle). The new AsteRx-i S UAS combines GNSS technology with an 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 the success of their existing UAV products, AsteRx m2 and m2a UAS. AsteRx-i S UAS’ optimized SWaP (Size, Weight and Power) increases UAV battery life resulting in longer flight times and improved productivity. 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.

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.

The 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.