SENTINEL: GNSS SErvices Needing Trust In Navigation, Electronics, Location & timing

SENTINEL：GNSS 服务需要对导航、电子设备、位置的信任

• 批准号: TS/I00257X/1
• 负责人: Robert Watson
• 金额: $ 27.49万
• 依托单位: University of Bath
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2011
• 资助国家: 英国
• 起止时间: 2011 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=TS%2FI00257X%2F1
• 关键词: SENTINEL; GNSS; SErvices; Needing; Trust

The GPS system is currently the only fully-operational Global Navigation Satellite System (GNSS). Since its inception over thirty years ago applications for GNSS have grown enormously. What was once a system primarily used and affordable only by the military has progressed to the point where it is a ubiquitous technology whose use is now taken for granted. However, GNSS systems used for deriving position and time are now finding their way into applications where the outputs are required to be trusted. Knowledge of the integrity of GNSS is required in these applications in order that they are able to be relied upon. Such applications include: timing in telecommunication networks, operation of smart electricity grids, financial transactions and law enforcement. Integrity of service is required because GNSS is very susceptible to wilful, malicious and unintentional jamming and interference. Ever more sophisticated ways of deceiving GPS receivers into giving false position and timing information are being developed (known as spoofing ). These methods are being increasingly used to commit crimes (e.g., vehicle theft) and endanger human lives (e.g., misinforming emergency-services vehicles of their position on the road network). This project will research techniques that will detect, quantify and locate GNSS signal anomalies. This research is a key step towards a wide-area network of sensors able to provide a GNSS integrity monitoring service thereby transforming GNSS into a trusted-service for mission- and safety-critical application.Specifically this project will:1) Analyse the impact jamming on GNSS devices used for position and time. For example some applications such as telecommunications timing devices may be more tolerant of jamming than those where precision positioning is required.2) Develop algorithms, methods and equipment for the detection and characterization of high-level interference sources. Examples include radio emission from malfunctioning equipment and high-power intentional jammer devices.3) Develop algorithms, methods and equipment for the detection and characterization of low-level interference sources. Examples include low-power jammer devices emitting GNSS like signals.4) Develop algorithms, methods and equipment for the localisation of interference sources. The emphasis here is the development of low-cost devices that can be deployed in large quantities.

全球定位系统是目前唯一全面运作的全球导航卫星系统。全球导航卫星系统自30多年前问世以来，其应用有了巨大增长。曾经主要由军方使用和负担得起的系统已经发展到一个普遍存在的技术，其使用现在被认为是理所当然的。然而，用于推导位置和时间的全球导航卫星系统现在正在进入需要可信输出的应用领域。在这些应用中需要了解全球导航卫星系统的完整性，以便能够依赖这些系统。这些应用包括：电信网络的定时、智能电网的运行、金融交易和执法。服务的完整性是必要的，因为全球导航卫星系统很容易受到故意、恶意和无意的干扰和干扰。欺骗全球定位系统接收器提供虚假位置和时间信息的更复杂的方法正在开发中（称为欺骗）。这些方法越来越多地被用于犯罪（例如，车辆盗窃）并危及人的生命（例如，错误地告知紧急服务车辆它们在道路网络上的位置）。该项目将研究探测、量化和定位全球导航卫星系统信号异常的技术。这项研究是朝着能够提供全球导航卫星系统完整性监测服务的广域传感器网络迈出的关键一步，从而将全球导航卫星系统转变为使命和安全关键应用的可信服务。例如，某些应用，如电信定时设备，可能比那些需要精确定位的应用更能容忍干扰。2）开发用于检测和表征高电平干扰源的算法、方法和设备。例子包括故障设备和大功率故意干扰装置的无线电发射。3）开发用于检测和表征低水平干扰源的算法、方法和设备。例子包括发射类似GNSS信号的低功率干扰机设备。4）开发用于干扰源定位的算法、方法和设备。这里的重点是开发可以大量部署的低成本设备。

项目成果

Array analysis of electromagnetic radiation from radio transmitters for submarine communication

海底通信无线电发射机电磁辐射的阵列分析

• DOI: 10.1002/2014gl062126
• 发表时间: 2014
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: Füllekrug M

Multipath propagation of low-frequency radio waves inferred from high-resolution array analysis

从高分辨率阵列分析推断低频无线电波的多径传播

• DOI: 10.1002/2015rs005781
• 发表时间: 2015
• 期刊: Radio Science
• 影响因子: 1.6
• 作者: Füllekrug M

Spoofing and Jamming of GNSS Signals: Are They Real and What Can We Do About Them

GNSS 信号的欺骗和干扰：它们是真实的吗？我们能对此采取什么措施

• DOI: 10.24868/issn.2631-8741.2020.005
• 发表时间: 2020
• 作者: Meggs R

Map of low-frequency electromagnetic noise in the sky

天空低频电磁噪声图

• DOI: 10.1002/2015gl064142
• 发表时间: 2015
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: Füllekrug M