Amid rise in Russian GPS jamming attacks, oneNav announces the first L5-direct GNSS receiver technology
May 02 2024 - 2:02PM
Business Wire
- oneNav’s L5-direct™ enables devices to acquire L5-band GNSS
signals without having to first acquire the outdated L1 signals
which are more susceptible to interference
- L5-band GNSS signals are 6x-7x more resilient to
interference and jamming
- Launch of a small, low-cost, and very low-power solution
comes amid a spike in Russian attacks on GPS systems
Global navigation satellite system (GNSS) technology developer
oneNav announces the launch of L5-direct™, a new GNSS product
category capable of directly acquiring and tracking L5-band
signals.
The launch comes as adversaries such as Russia are interfering
with GPS technology throughout Europe, as Russian forces have been
successful in using GPS blackout technology to thwart American-made
drones on the Ukrainian battlefield.
Additionally, in March 2024, more than 1,600 civilian aircraft
were impacted by a mysterious GPS interference in Eastern Europe –
a region where Russia has a long history of jamming civilian
signals.
While attacks are occurring more frequently, advances in
technology have the potential to make GNSS receivers more resilient
to manipulation and interference. Advanced L5-band signals
represent a significant step forward as these signals are 6-7x more
resilient to jamming and spoofing attacks than obsolete L1 C/A
signals1, which were first invented more than 50 years ago.
While current GNSS receivers must first acquire L1 before
acquiring L5, oneNav developed a new, different hardware
architecture, a GNSS Application-Specific Array Processor (ASAP),
that enables direct acquisition and tracking of L5-band
signals.
An April 2024 field study confirms the resilience of L5-band GPS
signals to jamming attempts. For this study, conducted in Eastern
Europe in proximity to the Ukrainian front, oneNav researchers
compared the performance of L1 and L5 signals in areas with
frequent GPS interference. While researchers observed widespread
jamming of L1 signals across the region, from Finland to Turkey,
signals that directly acquired the L5 band proved immune to
attempts at interference.
“Advances in GNSS technology give us the opportunity to better
protect our economy, our critical industries, our military, and our
E9-1-1 services from bad actors looking to exploit outdated L1
technology,” said oneNav CEO Steve Poizner. “In addition to
providing greater accuracy, L5-band signals are more resilient to
jamming and interference by design. Unlike existing GNSS receivers
that must first acquire old L1 signals before benefitting from
advanced L5-band signals, oneNav’s L5-direct™ acquires these modern
signals without using any L1 – a gamechanger for the GNSS
industry.”
In addition to offering superior performance, L5-direct™ has a
significantly smaller interference radius when encountering future
L1/L2/L5 jamming transmissions. It also simplifies GNSS receiver
design and reduces cost by eliminating the need for two antennas
and two RF receiver chains.
oneNav’s silicon-proven technology is currently available for
evaluation and integration by chip developer partners.
About oneNav:
oneNav is enabling AI-powered next generation GNSS silicon.
Based in California, oneNav is developing L5-direct™ GNSS receiver
technology for smartphones, wearables, drones, tracking devices,
and more and has built a large L5-band patent portfolio. oneNav’s
team comprises top GNSS experts from Qualcomm, Apple, Intel,
SnapTrack, SiRF, Trimble and eRide. With extensive experience in
GNSS system architecture, multipath mitigation, signal processing,
ASIC design and AI/machine learning, oneNav engineers have designed
and built billions of GNSS receivers on the market today and have
collectively filed over 300 career GNSS patents. World-class VC
investors include Google Ventures, Norwest Venture Partners, and
IQT.
1 GPS World, “Toughen GPS to resist jamming and spoofing.” March
31, 2022.
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