Global Navigation Satellite System in the Civil Surveillance

Abstract

 In the contemporary landscape dominated by widespread Global Navigation Satellite Systems (GNSS) usage for various navigational applications across aerial and terrestrial domains, route determination efficiency is increasingly reliant on the accuracy of inputs derived from GNSS, primarily facilitated by GPS and associated modules. However, the rising occurrence of spoofing mechanisms has introduced distortions in this realm, necessitating thorough examination. The discernible impact of GNSS signals on seamless navigation underscores their pivotal role in precise path determination. Yet, sophisticated spoofing methodologies disrupt this, compromising the integrity of GNSS-derived information. Addressing these challenges requires closer scrutiny of vulnerabilities and the formulation of robust countermeasures to fortify the GNSS infrastructure. This research embarks on exploring adaptive filtering techniques tailored for detecting and eliminating spurious signals introduced by sophisticated spoofing mechanisms. The primary goal is to establish an uninterruptible and dependable GNSS system. The scientific foundation involves a rigorous examination of signal processing methodologies, with a focus on adaptive filtering algorithms adept at discerning original signals from falsifiedones. By delving into these intricacies of adaptive filtering, this research aims to enhance GNSS resilience against spoofing threats, considering the nuanced characteristics of spoofed signals, and developing strategies capable of distinguishing them from authentic GNSS signals. The scientific rigor extends to the formulation of algorithms attuned to dynamic signal variations, ensuring adaptability to evolving spoofing techniques. This scientific inquiry contributes substantively to GNSS security by advancing the theoretical foundations of adaptive filtering mechanisms. Through systematic experimentation and empirical validation, the research aims not only to detect but also to eliminate spoofed signals, fostering an environment where GNSS users can rely on an uninterrupted and resilient navigation system. The results obtained from this study carry the promise of guiding the advancement of advanced counter-spoofing technologies, safeguarding the enduring integrity and reliability of GNSS against continuously evolving adversarial tactics.