20240019581. SYSTEM FOR LOCAL AREA DETECTION AND ALERTING OF GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) SPOOFING simplified abstract (Rockwell Collins, Inc.)

SYSTEM FOR LOCAL AREA DETECTION AND ALERTING OF GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) SPOOFING

Organization Name

Rockwell Collins, Inc.

Inventor(s)

Angelo J. Joseph of Melbourne FL (US)

Robert J. Frank of Indialantic FL (US)

SYSTEM FOR LOCAL AREA DETECTION AND ALERTING OF GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) SPOOFING - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240019581 titled 'SYSTEM FOR LOCAL AREA DETECTION AND ALERTING OF GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) SPOOFING

Simplified Explanation

The abstract describes a patent application for a local area detection and alerting system (LDAS) designed to detect potential Global Navigation Satellite System (GNSS) spoofing within a protected airspace. The system includes a ground-based control station and multiple RF interference (RFI) control stations strategically placed to define the protected airspace. Each RFI control station consists of two or more reference GNSS signal receivers connected to two or more reception antennas, each with a known location and height. The reference receivers continuously determine the absolute positions of each antenna using GNSS data, which are then compared to their true locations to identify any anomalies caused by GNSS spoofing. If potential spoofing is detected, the control station broadcasts LDAS updates to all aircraft within a transmission range surrounding the protected airspace, indicating the presence or absence of potential spoofing.

• The patent application describes a local area detection and alerting system (LDAS) for detecting potential GNSS spoofing within a protected airspace.
• The system includes a ground-based control station and multiple RF interference (RFI) control stations.
• Each RFI control station has two or more reference GNSS signal receivers connected to two or more reception antennas.
• The antennas have known surveyed locations and distinct heights.
• The reference receivers continuously determine the absolute positions of each antenna using GNSS data.
• The determined positions are compared to the true locations of the antennas to identify any anomalies caused by GNSS spoofing.
• If potential spoofing is detected, the control station broadcasts LDAS updates to all aircraft operating within a transmission range surrounding the protected airspace.

Potential Applications

• Aviation industry: The LDAS can be used to enhance the security of aircraft operating within a protected airspace by detecting potential GNSS spoofing and alerting pilots.
• Defense sector: The system can be utilized to protect military aircraft and sensitive installations from GNSS spoofing attacks.
• Maritime navigation: The LDAS can be adapted for use in maritime environments to detect potential GNSS spoofing and ensure the safety of vessels.

Problems Solved

• GNSS spoofing detection: The LDAS solves the problem of detecting potential GNSS spoofing within a protected airspace, providing an early warning system for potential attacks.
• Anomaly identification: By comparing the determined positions of the antennas to their true locations, the system can identify measurement anomalies caused by GNSS spoofing.

Benefits

• Enhanced security: The LDAS improves the security of aircraft and sensitive installations by detecting potential GNSS spoofing attacks.
• Early warning system: The system provides timely alerts to pilots and operators about the presence of potential spoofing, allowing them to take appropriate actions.
• Improved navigation reliability: By identifying and mitigating the effects of GNSS spoofing, the LDAS ensures the accuracy and reliability of navigation systems within the protected airspace.

Original Abstract Submitted

a local area detection and alerting system (ldas) for detecting potential gnss spoofing within a protected airspace includes a ground-based control station and several rf interference (rfi) control stations spaced to define the protected airspace. each rfi control station includes two or more reference gnss signal receivers in communication with two or more reception (rx) antennas, each antenna having a surveyed true location and distinct height. the reference receivers continually determine gnss-derived absolute positions of each antenna, which are compared to their true locations to determine if gnss spoofing is responsible for measurement anomalies. any detection of potential spoofing is forwarded to the control station, which broadcasts regular ldas updates indicating the presence or absence of potential spoofing to all aircraft operating within a transmission range surrounding the protected airspace.