System and method for detecting and mitigating spoofed satellite navigation signals

The system detects and mitigates spoofed satellite navigation signals by identifying transitions and adjusting positioning units, effectively addressing spoofing vulnerabilities in navigation systems to ensure accurate and safe navigation.

JP2026086391APending Publication Date: 2026-05-26QUALCOMM INC
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
QUALCOMM INC
Filing Date
2025-12-19
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing satellite navigation systems are vulnerable to spoofing attacks, which can cause vehicles to navigate to incorrect locations, leading to potential accidents or harm, as malicious actors can overpower weak GNSS signals with interfering signals containing false information.

Method used

A system and method to detect spoofed satellite navigation signals by identifying transitions in GNSS signals, determining spoofing regions, and adjusting the positioning unit configuration to ignore or use alternative positioning techniques when approaching these regions, using geopolygon data and statistical models to map and mitigate spoofing areas.

Benefits of technology

Enhances the resilience of navigation systems to spoofing attacks by enabling accurate location determination and safe navigation by detecting and mitigating spoofing regions, reducing the risk of accidents and ensuring reliable positioning.

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Abstract

Determine the boundary of the spoofed region that contains spoofed satellite signals. [Solution] Based on a first set of GNSS signals received by a Global Navigation Satellite System (GNSS) receiver over a first time period, it is determined that at least one GNSS signal corresponding to a GNSS satellite has experienced a first transition, wherein the first transition comprises a transition from an unspoofed state where at least one GNSS signal is not determined to be spoofed to a spoofed state where at least one GNSS signal is determined to be spoofed, or a transition from a spoofed state to an unspoofed state. Furthermore, a first location is determined corresponding to the location where the GNSS receiver was located during the first transition.
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