oneNav debuts L5-direct ASIC receiver with advanced jamming resilience

oneNav has developed an L5-direct GNSS receiver ASIC, a breakthrough that enables devices to directly acquire and track L5-band satellite signals without relying on the older, more vulnerable L1 signals. The L5-direct receiver was rapidly designed and brought to market using the GlobalFoundries 22-nanometer FDX platform, which offers advanced mixed-signal integration and ultra-low power performance for both radio frequency and digital functions.

The new receiver features a unique processor architecture, described as a “GPU for GNSS,” that eliminates dependence on L1 signals. This approach is designed to address critical vulnerabilities in aviation, defense and consumer navigation applications, where L1 signals are increasingly susceptible to jamming and spoofing. According to oneNav, the L5-direct technology is completely immune to L1 jamming and offers six to seven times greater resilience to interference and jamming in the L5 band compared to legacy solutions. It also delivers a tenfold improvement in measurement precision, faster initial location acquisition, enhanced accuracy in dense urban environments and reduced power consumption compared to L1-dependent receivers.

L5-direct can be deployed across defense, national security, industrial and consumer markets, offering a significant boost in jamming resistance for GPS-based positioning and timing applications.

“The need for ultra-low power consumption with high jamming resilience is acute in the rapidly growing unmanned vehicle segment, including drones,” said oneNav CEO Steve Poizner.

Earlier this year, oneNav partnered with three military agencies to evaluate L5-direct in terrestrial, maritime and aerial environments under simulated electronic warfare conditions. The trials confirmed the technology’s immunity to L1 interference and demonstrated its superior resilience to L5 jamming.

Key features of the GlobalFoundries 22FDX+ platform that enabled this innovation include optimized power-performance balance, advanced mixed-signal integration, ultra-low power consumption and enhanced RF performance, supporting a wide range of applications.

The L5-direct technology is now available as licensable intellectual property and can be customized for use in a range of applications, from consumer wearables to unmanned aerial vehicles. It can also complement military-grade M-Code solutions for applications requiring high resilience, low power and rapid signal acquisition.