28.5.2020

Anti-Jamming GNSS System Launched

Anti-Jamming GNSS System Launched – link

Source: UST

Article Headlines

  • Meteksan Defence has launched its new Anti-Jamming GNSS System, designed for military and defense platforms such as UAVs and UGVs
  • Supporting multiple frequencies and multiple constellations (GPS, GLONASS, GALILEO, BeiDou), the system can determine the direction of jamming signals and suppress them using spatial filtering, reconstructing the original signal for delivery to standard GNSS receivers
  • GNSS signals are weakened over the distance between satellite and receiver due to atmospheric effects, allowing them to be easily suppressed by jammers that cause receivers to lose signal tracking. This can cause unmanned systems and robotics to malfunction or even crash
  • The new system uses a four-element Controlled Reception Pattern Array (CRPA) antenna and provides resistance against one or multiple jamming signals. It can operate at high speeds and under highly dynamic conditions, and is lightweight and compact, making it ideal for SWaP (size, weight and power)-limited unmanned systems. It is also MIL-STD-810G and MIL-STD-461F compliant
  • Meteksan Defence Anti-Jam GNSS also includes a built-in GNSS receiver capable of decoding GPS satellite signals for calculating position, velocity and time information. This way, without needing an external GNSS receiver, Meteksan Defence Anti-Jam GNSS can both output filtered GNSS RF signal and calculate position/velocity/time information from the filtered signal
  • Thanks to the high-tech antenna design infrastructure owned by Meteksan Defence, it also develops their own CRPA antenna designs and offers a variety of antenna specific to the platforms

Overview & Comments

  • Aside from legacy anti-air means the cyber protection, within datalink and navigation systems, is extremely critical in modern warfare with regards to UAVs
  • Spoofing & jamming are a common threat in many operational theatres active today, up to efforts in actively trying to take control of the systems
  • Thus, “datalink assurance” is the new air-superiority addition needed for the modern area of operation
  • New forms of encryptions and/or datalinks are a must for current systems
  • In general, with regards to air-superiority, UAS are more vulnerable than other air assets as they usually employ several components that are vulnerable aside from the aerial platform itself – for example the GCS, Ground Datalink Terminals, Satellites (SATCOM) etc.
  • Contact ABG-SC to learn more on UAS survivability 
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