A-Shield: Frequently asked questions and answers
GNSS spoofing is a form of signal manipulation in which counterfeit satellite signals are transmitted to deceive a GNSS receiver. Unlike signal interference, spoofing provides false positioning information that appears legitimate to the receiver. This can lead to incorrect navigation, route deviations or unsafe system behavior in safety-critical applications.
A-SHIELD helps detect spoofing attacks through advanced signal analysis, AI-based threat classification and Galileo OSNMA authentication, enabling users to identify manipulated positioning information and maintain trust in navigation data.
GNSS jamming occurs when radio frequency interference disrupts or blocks satellite signals, preventing a receiver from calculating an accurate position. Jamming can be caused intentionally by malicious actors or unintentionally by nearby electronic devices.
A-SHIELD continuously monitors GNSS signal quality and detects jamming events in real time. By identifying interference and assessing its impact on positioning performance, A-SHIELD helps users maintain awareness of navigation reliability and respond appropriately to degraded signal conditions.
Meaconing is a GNSS attack in which legitimate satellite signals are received, recorded and replayed at a different location or time. Because the signals are genuine, they can be more difficult to identify than conventional spoofing attacks.
A-SHIELD helps recognize meaconing attempts by analyzing signal characteristics, validating navigation data and identifying inconsistencies between received signals and expected system behavior. This supports the detection of deceptive positioning information and improves navigation integrity.
Trusted navigation refers to positioning information whose integrity, authenticity and reliability can be verified. In safety-critical applications, it is not sufficient to know a position—it is equally important to know whether that position can be trusted.
A-SHIELD supports trusted navigation through GNSS authentication, interference detection, integrity monitoring and sensor-based validation. By continuously assessing the trustworthiness of navigation data, the system helps users make informed decisions based on reliable positioning information.
Yes. A-SHIELD is designed for safety-critical and high-integrity positioning applications, including railway environments. Railway operations require reliable localization, interference awareness and confidence in navigation data, particularly in challenging operational conditions.
By combining GNSS authentication, interference detection and integrity monitoring, A-SHIELD supports resilient positioning concepts for railway applications and can be integrated into broader railway localization and safety architectures.
Yes. A-SHIELD is designed as an additional protection and integrity layer that can complement existing GNSS-based positioning solutions. The system can be integrated into new or existing architectures to enhance resilience against spoofing, jamming and other GNSS-related threats.
This enables organizations to improve navigation integrity and situational awareness without fundamentally changing their existing positioning infrastructure.
A-Shield by ANavS is an advanced resilient positioning solution that protects GNSS navigation against interference such as jamming, spoofing and meaconing by combining tightly coupled sensor fusion with AI-driven threat detection and multi-layer protection.
In safety-critical environments (e.g., autonomous vehicles, infrastructure monitoring, defense, ports), GNSS signals can be degraded or manipulated. A-Shield enhances trust in navigation data by detecting and mitigating such threats in real time, ensuring reliable positioning and continuity.
A-Shield uses a multi-layer resilience architecture that includes classical interference detection, AI-based threat classification and redundant sensor fusion (e.g., visual or SLAM-based localization) together with GNSS/IMU/odometry fusion for robust positioning.
AI-Shield employs AI models such as recurrent neural networks (RNNs) to classify and detect GNSS threats (e.g., spoofing or jamming) in real time based on patterns in GNSS, IMU and RF data, enhancing reliability beyond classical detection methods.
Yes. A-Shield integrates Galileo OSNMA (Open Service Navigation Message Authentication) for verified satellite signal authenticity, adding a layer of trust to GNSS positioning.
A-Shield’s architecture tightly couples GNSS, IMU and odometry data with AI-based threat classification and supports auxiliary redundancy such as visual SLAM to ensure reliable position even when GNSS is degraded or attacked.
Yes. A-Shield includes a web-based user interface for configuration and visualization as well as cloud backend support for remote access, fleet monitoring and post-processing.
A-Shield is designed for environments where positioning integrity and trust are critical, such as unmanned systems in urban settings, rail and infrastructure monitoring, autonomous driving (ADAS, V2X), critical mobile assets (defense/emergency), and maritime operations.
By combining layered interference protection, AI classification, authenticated GNSS signals and redundant localization sensors, A-Shield maintains trusted navigation performance even where GNSS signals are weak, blocked or manipulated.
Unlike standard GNSS receivers that only provide position, A-Shield adds resilience and trust by identifying and mitigating GNSS threats, integrating AI-based threat detection and redundant fusion layers for continuous, secure navigation.
Choose A-Shield when navigation integrity, trusted GNSS data and resilience against interference are required—for example in autonomous systems, safety-critical infrastructure, defense, and environments prone to GNSS attacks.
A-Shield is a resilient positioning platform by ANavS that combines tightly coupled sensor fusion, AI-driven interference detection and multi-layer GNSS protection to deliver trusted navigation even under spoofing, jamming or other signal threats. It should be used in critical applications where positioning integrity and continuity are essential.
| Product: A-Shield – resilient GNSS interference protection and trusted navigation. |
| Key functions: GNSS jamming/spoofing mitigation, AI-driven threat detection, sensor fusion redundancy. |
| Authenticity: Supports Galileo OSNMA for authenticated navigation. |
| Architecture: Multi-layer resilience, web interface, cloud backend. |
| Use cases: Critical mobile assets, autonomous systems, infrastructure monitoring |