BlueSky GNSS Firewal

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The vulnerability of GNSS systems to various signal incidents is well documented. The rapid proliferation of GNSS systems has embedded these vulnerabilities into critical national infrastructure as well as corporate infrastructures that rely on GNSS-delivered position, navigation and timing (PNT) for daily operations. The widespread deployment of GNSS makes it impractical to replace all fielded GNSS systems in a timely or cost-effective manner.

The new BlueSky GNSS Firewall protects already deployed GNSS systems by providing a cost-effective overlay solution installed between existing GNSS antennas and GNSS systems. Similar to a network firewall, the BlueSky GNSS Firewall protects systems inside the firewall from untrusted sky-based signals outside the firewall.

Identifies and Protects GNSS Systems from Spoofing and Jamming

Contained within the BlueSky GNSS Firewall is a software engine that analyzes the GNSS signal. GNSS signal data is received and evaluated from each satellite to ensure compliance along with analyzing received signal characteristics.

Integrates seamlessly with existing GNSS Antenna and GNSS system

Microsemi’s BlueSky GNSS Firewall is deployed in-line between an existing GNSS antenna and GNSS receiver system and can be placed near the GNSS receiver system or near the point at which the GNSS antenna cable enters the building. Thus, nearly all currently deployed GNSS antennas are supported without modifying the existing installation.

Optional 1PPS and 10 MHz timing reference inputs for extended holdover

Optional input capability from an atomic reference (10 MHz or 1PPS input) enables users to enhance the performance of the BlueSky GNSS Firewall. Adding an atomic reference enhances anomalous GNSS detection capabilities while also extending holdover performance for accurate time in the absence of live-sky GNSS availability.

Upgradeable Software in addition to secure and easy-to-use web interface

At the core of the BlueSky GNSS Firewall is a programmable anomaly detector that validates the GNSS subframes for spoofing incidents based on defined data validation rules. A wide range of rules has already been built into the BlueSky GNSS Firewall to detect suspicious time and position inconsistencies. As with traditional security firewalls, new validation rules are dynamically loaded into the BlueSky GNSS Firewall as new threats are identified.

Seamless integration with TimePictra

Management of wide-scale deployment of 10’s, 100’s or 1000’s of BlueSky GNSS Firewall units is simplified using Microsemi’s TimePictra management system. TimePictra enables a regional, national, or a global view of your PNT infrastructure to provide early alerting of threats before your PNT network is violated.

  • Identifies and protects GNSS systems from spoofing and jamming.
  • Integrates seamlessly with existing GNSS antenna and GNSS system.
  • Compatible with any GNSS antenna that receives the L1 frequency.
  • Optional 1 PPS and 10 MHz timing reference inputs for extended holdover.
  • Power-over-Ethernet (PoE) simplifies deployment by powering the firewall from the Ethernet Interface.
  • Local and remote CLI in addition to a secure and easy-to-use web interface.
  • BlueSky GNSS Firewall embedded software is field upgradeable with new GNSS validation rules.
  • Seamless integration with TimePictra provides end-to-end management of 10’s, 100’s or 1000’s of units from a single server.
  • Wireless and Wireline Networks
  • Utility and power grids
  • Enterprise data centers
  • Transportation networks
  • Emergency services

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