Gnss interference threats and countermeasures trid. Indepth case studies and practical implementation and application approaches are used in this book to helps engineers and scientists design and implement robust systems to meet the needs of todays challenging projects. Gpsdependent positioning, navigation, and timing synchronization procedures have a significant impact on everyday life. Using the gnss receiver in your cell phone to find that new restaurant does not require the same level of performance as landing an unmanned helicopter on a moving platform, for example. Chinese drones in spratly islands, and chinese threats to usa forces in pacific student learning objectives the student will be reintroduced to the problem of countering hostile use of uas, uv unmanned boats uuv against u. Gnss vulnerability is a growing concern in critical infrastructure applications. Gps jamming quantifying the threat chronos technology ltd. The civil aviation response to gnss vulnerabilities. The result is a series of reliable and costeffective highperformance multisensor navigation solutions. Gnss interference threats and countermeasures gnss technology and applications kindle edition by dovis, fabio. Dec 19, 2017 gnss core signals are transmitted from medium earth orbit constellations at 20 000km above the earth and thus reach users receivers as weak signals. Someone accidentally cuts the cable to antenna impact.
This is just one of the 20 tcipg industry workshop demos, check out. Also described is a comparative analysis of four gnss threat reporting formats in use today. Eng, fiet managing director chronos technology ltd gnss vulnerability countering the threat th feb 20 npl, teddington, london. Global navigation satellite system gnss vulnerabilities. We can illustrate vulnerabilities, susceptibilities access to jamming trials 24x7 monitoring to assess local threat. The wide range of applications dependent on gnss signals and seemingly unrelated services could fail simultaneously as a result of disruption to the gnss signals resulting from the vulnerabilities. Page 4 2 gnss signal vulnerabilities interference source of interference.
Gnss vulnerability countering the threat th feb 20 npl, teddington, london gps spoofing susceptibility testing. Gnss vulnerability countering the threat th feb 20. A european network of excellence in managing threats and vulnerabilities in the future. Modeling and analysis of the threats to gnss scientific. Part of the difficulty of risk management is that measurement of both of the quantities in which risk assessment is concerned potential loss and. Use features like bookmarks, note taking and highlighting while reading gnss interference threats and countermeasures gnss technology and applications. Our conclusion lists promising areas of future research. Gnss vulnerability midanpirg cns sg7 meeting cairo, egypt 31 may2 june 2016 egypt cns sg7 cairo, egypt 31may 2 june 2016 1. Mulassano, analysis of the onepole notch filter for interference mitigation. Gnss is protected, there is now a need to respond at an international level to ensure that there is i a common standard for gnss threat monitoring and reporting, and ii a global standard for assessing the performance of gnss receivers and applications under threat.
The vulnerability of the global navigation satellite systems gnss makes it susceptible to a variety of threats, so it is significant to study the effects of each threat on gnss performance. Complete sync findings and recommendations will be made available in a final gps vulnerability report to be released q1 2017. What is the best way for government to alert companies and coordinate action to mitigate the risks from gnss attacks. Go into holdover mode, run off internal oscillator gnss perturbations example. Sources of gnss interference 4 time synchronization and gnss vulnerabilities example. He was master security architect at cable and wireless and exodus communications, and professor of computer science at the university of tennessee. To analyze the impacts of different threats, a dynamic master logic diagram dmld based modeling and analysis method was presented. Gnss core signals are transmitted from medium earth orbit constellations at 20 000km above the earth and thus reach users receivers as weak signals. Gnss signals are highly vulnerable to a growing array of threats. A survey and analysis of the gnss spoofing threat and. Sentinel project report on gnss vulnerabilities sentinel project gnss vulnerabilities the sentinel project investigated a number of interconnected activities involving missioncritical or safetycritical services which need to be able to trust gnss signals at the point of use. Published wednesday, february, 20 illegal civilian gps jammers are behind the growing threat of signal interference, according to research being revealed today.
Influence mechanism of gnss vulnerability design and development a platform for gnss vulnerability simulation, verification and mitigation test and verification detection technologies mitigation technologies solutions detect vulnerabilities provide countermeasures 63 20 7. This chapter examines sources of global navigation satellite system gnss vulnerability, identifying the broad range of topics that comes under this heading. As the last development of the network, in the beginning of 20 three new. Read online now gnss interference threats and countermeasures book by artech house ebook pdf at our library. As such, spoofing and antispoofing algorithms have become an important research topic within the gps discipline. Hence, gnss vulnerability mitigations steps should be given emphasis, including navigationpositioningtiming backups, making full use of ongoing gnss modernization programs, integrity monitoring. Gnss vulnerabilities using both gnss and highperformance fiber optic gyro fogbased imus from kvh industries, inc. Problem threats to gps and multi gnss systems are increasing and becoming more sophisticated. Bring these gps vulnerabilities into perspective assess the threat. Understanding and mitigating the impacts of gpsgnss vulnerabilities. Bobba attack impact timing location receiver satellite accurate clock inaccurate clock range location time attack false timing false location pmu phase normal operation timing data location of satellite receiver satellite accurate clock. Global positioning system gps in civilian, security, and defense applica tions, and the growing. The impact of a gnss outage on other services should also be considered. Gps spoofing susceptibility testing chronos technology ltd.
Although the spread spectrum nature of these signals provides some natural. Standardisation of gnss threat reporting and receiver testing. Multignss may be critical to enable resilient telecom infrastructure sync recommendations. Critical infrastructure vulnerabilities to gps disruptions. Each satellite broadcasts a signal containing orbital data and the. Understanding and mitigating the impacts of gpsgnss. The techniques in this book take advantage of the increased. Climate change, prognoses of sealevel rise and pollution present immeasurable threat to the planet, humanity, and all living communities. First the relationships between threats and gnss performance were built.
National countermeasures ministry of security and public administration 2012. Understanding threats, vulnerabilities, and countermeasures. Standalone gnss receiver different frequency offsets different values of power after 20s, we calculate a note to evaluate the spoofing 100% means that the receiver has been totally spoofed 12 time synchronization and gnss vulnerabilities frequency offset vs power above sky. This resource provides a comprehensive survey of the effects of radiofrequency interference rfi and spoofing threats on global navigation satellite systems gnss. As a result, the requirement for new equipment to operate in gpsgnss denied conditions is now becoming normal. Combating gnss interference with advanced inertial.
New technologies deployed to counter the threat of gps. Mar 03, 2015 gnss receivers and the cyber threat 1. Therefore, such a widely used system increasingly becomes an attractive target for illicit exploitation by terrorists and hackers for various motives. It is worth drilling down beyond that statement as the denial of gnss signals, both accidental and deliberate, can be due to a variety of reasons and the mitigation may. Grace, with its mandate to support gnss testing in the uk is developing test types, procedures, resources and success criteria as well as tools required to assess gnss vulnerabilities, and highlighting the need for test specifications for operationally realistic threat scenarios.
A spirent overview of the vulnerabilities of gps, galileo, and other global navigation satellite systems, and a look at how you can pro. Countering the threat, held at the uks national physical laboratory, will also demonstrate a series of new technologies including intelligent receivers. One step at a time, the book systematically helps you develop the problemsolving skills needed to protect any information infrastructure. Standardisation of gnss threat reporting and receiver.
At the same time, gps and other gnss systems are being relied upon more for safetyrelated and commercially sensitive applications, such as autonomy and time synchronization. Chaz dixon 1, stuart smith 2, andrew hart, rob keast, simon lithgow 2, dr. What are the vulnerabilities and weaknesses of gnss. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Pdf a survey and analysis of the gnss spoofing threat and. The use of gnss for a variety of purposes has become so convenient and ubiquitous that there is a strong tendency among users to treat it as a given. Detect vulnerabilities provide countermeasures 63 20 7. Additional questions may be directed to lee cosart or jackie wohlgemuth. The civil aviation response to gnss vulnerabilities gnss. New technologies deployed to counter the threat of gps jamming. Gps interference detection and mitigation idm program. Seventh framework programme fp7200720 under grant agreement number. This is just one of the 20 tcipg industry workshop demos, check out the rest for more great work.
Although the spread spectrum nature of these signals provides some natural protection to interference, the earth interference power to space signal power ratio is frequently unfavourable and this. Artech house provides todays professionals and students with books and software from the worlds authorities in rfmicrowave design, wireless. There are tradeoffs between the different methods of removing errors in gnss signals. Chris hill 4, steve hill 5, colin beatty 5 1navigation unlimited, united kingdom. Spirents fundamentals of gps threats white paper 2. Vulnerability of satellitebased navigation signals to intentional and. Timing vulnerabilities can be addressed through system design. Each satellite broadcasts a signal containing orbital data and the precise time at which the signal was broadcast. The civil aviation response to gnss vulnerabilities gnss in. The book on gnss interference and spoofing threats cited above 3.
Download it once and read it on your kindle device, pc, phones or tablets. Problem threats to gps and multignss systems are increasing and becoming more sophisticated. Gnss receivers and the cyber threat linkedin slideshare. Discussions will cover the reliance of critical infrastructure on gnss, the extent of potential damage and vulnerability, and possible solutions to alleviate these vulnerabilities. Calibra countering gnss high accuracy applications limitations due to. Presentation from gnss vulnerabilities conference september 3, 2008. Gnss interference threats and countermeasures gnss. Nov, 20 understanding and mitigating the impacts of gpsgnss vulnerabilities.
Challenge gnss signals can be blocked or reflected by buildings, terrain and other structures. Specification and testing of gnss vulnerabilities dr. Satellite navigation signals from space are precariously weak, and can easily be blocked, damaged or compromised by a growing array of threats including solar activity, manmade interference, malicious faking of gps signals, and the manipulation of. Overcoming gnss vulnerability by applying inertial data. Countering the threat, held at the uks national physical laboratory, will also demonstrate a series of new technologies including intelligent receivers and. Go into holdover mode, run off internal oscillator loss of gnss signal example. Authors contemplate the possibilities that gnss may provide in terms of environmental protection. Jancos threat, risk and vulnerability assessment is an objective evaluation of threats, risks, and vulnerabilities in which assumptions and uncertainties are clearly considered and presented. Jiang, university of illinois, demonstrating an advanced goalbased attack on gps signaling and discussing proposed mitigations to be able to detect and potentially prevent the impact of this class of attacks. Designers, staff, and users are alert to the navwar threat. Fundamentals of gps threats how the growing threats to satellite navigation signals can impact your critical systems, and what to do about it. You also gain new insight into broader themes, including risk analysis, usability, trust, privacy, ethics, and forensics.
Solutions for gnss vulnerabilities insure workshop zahidul bhuiyan et al. Pdf vulnerabilities of civilian global navigation satellite. Vulnerabilities, threats, and authentication in satellite. Dependence on gnss connects many otherwise independent services to form an accidental system with a single point of failure.
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