PNI Sensor reports that Ukraine’s drones are using the company’s RM3100 magnetometer for navigation sensing in GPS-denied environments. The core idea is simple: when navigation is more precise, drone performance improves. In contested environments, that precision can make a…
Republished by AIC Engineering. All rights belong to the original publisher; see Source below.
PNI Sensor reports that Ukraine’s drones are using the company’s RM3100 magnetometer for navigation sensing in GPS-denied environments. The core idea is simple: when navigation is more precise, drone performance improves. In contested environments, that precision can make a measurable difference in mission reliability and control.
Russia’s electronic warfare systems have made GPS disruption a daily reality across the front, says PNI. Jamming, spoofing, and signal degradation force Ukrainian unmanned systems to operate with reduced or intermittent satellite guidance. In this environment, navigation resilience isn’t just a technical advantage — it’s a battlefield requirement. The sophisticated sensor has become one of the quiet but essential components helping Ukrainian drones maintain stable heading, predictable behavior and mission reliability even when GPS is compromised. This article highlights a presentation by the company, the full presentation is available on its website.
How the RM3100 helps Ukraine’s military operate in GPS-denied environments
Ukraine’s drones often face electronic warfare tactics that disrupt or spoof satellite navigation signals. In those conditions, inertial systems alone can drift and reduce accuracy over time. By adding the RM3100 to the navigation stack, drones gain a geomagnetic reference that helps preserve stable heading without depending entirely on GPS.
The RM3100 is a high-sensitivity, low-noise magnetometer built on the company’s magneto-inductive technology, designed to deliver stable, high-resolution heading information over time and temperature.
This geomagnetic reference acts as a stabilizing anchor. When GNSS becomes unreliable, the RM3100 provides a steady, Earth-fixed signal that helps correct drift in inertial sensors. This is especially important for small UAVs, which have limited onboard compute and must maintain accuracy despite vibration, rapid maneuvering and low-altitude flight.
In Ukraine, drones frequently fly at treetop level to avoid detection; in high-EMI zones near jammers, radars, and armored vehicles; and in fast-changing magnetic environments created by urban infrastructure or battlefield clutter.
Under these conditions, conventional MEMS magnetometers often struggle with noise, drift and magnetic interference. The magneto-inductive architecture of the PNI magnetometer gives it ultra-low noise, enabling accurate heading estimates; high sensitivity for capturing subtle magnetic field variations; exceptional stability with zero bias drift, critical for inertial sensor drift correction; and no temperature drift, which is essential for long-duration missions.
Modern drones usually rely on layered navigation systems instead of a single sensor source. GNSS, IMUs, magnetometers, and sometimes vision-based tools work together to produce a more robust navigation solution. In that architecture, the RM3100’s precise geomagnetic sensing helps anchor heading estimates to a stable Earth-referenced signal. Its durability and consistent performance make it adaptable across the diverse ecosystem of Ukraine’s drone fleet which includes a wide mix of platforms including commercial quadcopters, custom-built fixed-wing UAVs, long-endurance reconnaissance drones and improvised strike systems.
Located in the northern California town of Windsor, about 9 miles north of Santa Rosa, PNI specializes in sensing for precision navigation and motion tracking.
Source
- Magnetics Magazine (2026-09-23)
- Original article: Ukraine Achieves Drone Navigation Stability with Magnetometer from PNI Sensor
- https://magneticsmag.com/ukraine-achieves-drone-navigation-stability-with-magnetometer-from-pni-sensor/