Designing CRPA antennas that are effective in suppressing GNSS interference and jamming attacks whilst also delivering the antenna performance needed for high positional accuracy is far from simple, and especially so if the CRPA must be compact and fit within strict size, weight and power constraints to support a wide range of applications.

Helix Geospace set out to address precisely this challenge, developing the CRPxTM GNSS Anti-Jamming System - a single unit, high-performing anti-jamming CRPA antenna.

CRPx-350 diagonal web canvas

Compact, lightweight, ultra-low power

 

Ø120mm x 30mm

500g

<3W

CRPx & all

CRPx - a CRPA uniquely delivering resilient GNSS and high positional accuracy in a simple, compact footprint

Military-grade resiliency

Unrivalled military-grade GNSS resiliency

  • Dual-band (L1/E1, L2/L5/E5a+b; supports C/A, L2C, P/Y and M-code

  • 6 nulls/band; 12 in total (neutralises 2x more jammers than the competition)

  • >50dB suppression; J/S >100dB (10x better jamming suppression)

  • In-band, adjacent band, high-power & multi-jamming scenarios (non-blocking)

  • Maintains GNSS signal linearity for use with GNSS receiver anti-spoofing algorithms for optimum resiliency
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Class-leading Positional Accuracy

  • Dual high-precision helical antenna arrays provide decimetre accuracy

  • Beam forms for optimal satellite tracking

  • Auto-adapts to platform motion (pitch and yaw)

  • High phase stability and optimal group delay variation enables use with carrier-phase GNSS (RTK) for even higher positional accuracy

  • Combats interference from multipath and clutter (L-band, RADAR signals etc.)

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Universal Compatibility & Ultra-low SWaP

  • Plug-and-play without needing any complex cabling, bespoke integration, or configuration

  • Compact & lightweight: Ø120mm x 30mm; <500g (2-5x smaller and lighter than the competition)

  • Ultra-low power: mean <3W (5-10x reduction in power)
  • Engineered down to a low price point for applicability across a range of dual-use (defence & civil) applications across land, sea and air

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Built using our patented DielectriXTM antenna array technology developed in the UK, backed with full UK/EU/NATO supply chain provenance and trusted by global partners.

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Maximising GNSS/GPS resilience

GNSS receiver anti-jamming/spoofing capabilities provide a basic level of situational awareness and resilience but can be easily overcome by sophisticated attacks.  The optimal end-end solution is to combine a CRPA, as a first line of defence, with the GNSS receiver.

Helix's CRPx has been specially engineered to work seamlessly with GNSS receiver anti-spoofing.  

Combine the two for the ultimate in end-end anti-jamming & anti-spoofing resiliency.

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WHITE PAPER

Ensuring PNT Resilience in a Challenging World

Download the white paper to learn more about the challenges and trade-offs of CRPA design and how Helix Geospace's CRPx innovative solution tackles them.

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Engineered for a wide range of applications

Maritime

GNSS is critical for navigation in modern maritime operations but increasingly under threat.

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Drones (UAVs)

Resilient GNSS in a compact form factor is fundamental to the operation of drones & UAVs.

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Military UxVs

Unmanned aerial and surface vehicles (UxVs) are revolutionising modern warfare but crucially dependent on resilient GNSS.

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Civil Aviation

Mitigating inadvertent GNSS interference from conflict zones is paramount to ensuring the safety of aircraft and crew.

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