In the field of satellite navigation, interference has become the core challenge threatening positioning accuracy and availability. Whether in aviation navigation, precision agriculture, or autonomous driving, Resilient GNSS receivers must maintain stable performance in complex electromagnetic environments. As a global leader in Anti Jamming GNSS technology, Septentrio has set a benchmark through its revolutionary AIM+ (Advanced Interference Mitigation) system. This article will analyze the core advantages of Septentrio receiver products and introduce breakthrough upgrades of its latest Mosaic-X5 Resilient GNSS board series.
The AIM+ technology of Septentrio receiver provides full-link anti-interference capabilities from RF front end to digital processing. Its core includes three innovations: 1) Precise identification using Septentrio’s spectrum scanning dynamically adjusts digital filters to separate interference energy. In the Hilversum radio tower case, this restored GLONASS L2 C/NO values to operational levels. 2) Multi-band processing activates multiple notch filters simultaneously – critical for applications like Tyumen’s precision agriculture project where Mosaic-X5 Resilient GNSS board enabled centimeter-level RTK positioning. 3) Nanosecond-level response for aviation pulses achieves 3% suppression with 0.2dB loss, as demonstrated at Brussels Airport ensuring aviation safety.
For extreme airborne interference scenarios, Septentrio’s pulse blanking module extends suppression rates while maintaining GPS L2 integrity. When facing irreversible GLONASS L2 interference like in Ostend Port, the system isolates contaminated bands allowing GPS-only RTK continuity.
Aligned with AIM+ advancements, Septentrio launched next-gen Mosaic series including Mosaic-X5 and compact Mosaic-H Resilient GNSS boards. Supporting full-band coverage (L1/L2/L5/E5/E6) and compatibility with all major constellations, these modules integrate MP+ multipath suppression for sub-meter urban positioning. The new RAIM+ algorithm combines spoofing detection with encrypted timing interfaces, providing dual protection for critical infrastructure. The Mosaic-H Resilient GNSS board features 7nm process reducing power 40%, integrated IMU for GNSS-denied dead reckoning.
In response to the continuous upgrade of AIM+ technology, Septentrio has launched a new generation of Mosaic series high-precision GNSS modules, including Mosaic-X5 and the compact Mosaic-H, further consolidating its leading position in anti-interference and multi-scenario adaptability. The Mosaic series supports full-band coverage (L1/L2/L5/E5/E6), is compatible with GPS, GLONASS, Galileo, Beidou and QZSS. Combined with Septentrio’s unique multipath suppression technology (MP+), sub-meter positioning can be achieved in complex environments such as urban canyons. The newly added RAIM+ (Receiver Autonomous Integrity Monitoring) algorithm can identify spoofing signals in real time through signal feature analysis and consistency verification. Combined with the encrypted timing interface, it provides dual protection for critical infrastructure (such as power synchronization networks). The Mosaic-H module adopts 7nm process, reducing power consumption by 40%, and integrates an IMU sensor at the same time, supporting tightly coupled integrated navigation, and can still maintain centimeter-level dead reckoning in GNSS-denied scenarios such as tunnels.
Septentrio, through the combination of AIM+ technology and the Mosaic series, has pushed the GNSS anti-jamming capability to a new height. Whether dealing with the increasingly crowded radio frequency environment or defending against malicious spoofing attacks, its products always adhere to the design philosophy of “availability first”, providing a reliable positioning cornerstone for the industrial, scientific research and livelihood fields. In the era of the Internet of Everything and autonomous driving, Septentrio continues to lead the innovation frontier of high-precision GNSS technology.
