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首页> 外文会议>Saint Petersburg International Conference on Integrated Navigation Systems; 20040524-26; Saint Petersburg(RU) >PROTECTING THE GLOBAL POSITIONING SYSTEM
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PROTECTING THE GLOBAL POSITIONING SYSTEM

机译：保护全球定位系统

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摘要

A report published by the Volpe National Transportation Systems Center titled "Vulnerability Assessment of the Transportation Infrastructure Relying on the Global Positioning System" (29 August 2001) slates: "The civil transportation infrastructure, seeking the increased efficiency made possible by GPS, is developing a reliance on GPS than can lead to serious consequences if the service is disrupted, and the applications are not prepared with mitigating equipment and operational procedures." The findings of the Volpe report suggest, among other things, that: "Systems and procedures to monitor, report, and locate unintentional interference should be implemented or utilized in any application for which loss of GPS is not tolerable". This paper will discuss the use of the GPS Anomaly Monitoring Equipment Suite (GAMES) to detect and report anomalies in GPS. The paper will discuss systems performance via test results and demonstrate how GAMES can be used for critical infrastructure protection. Data will be presented to show the different anomalies that could occur as well as demonstrating of GAMES would handle such anomalies. GAMES gives the user a real time report on how accurate GPS is and by using the GPS Interference And Navigation Tool (GIANT) the user can predict the accuracy and effectiveness of GPS in the near future. The combination of these tools creates a "system" that can be used to monitor and evaluate the GPS environment and determine impacts on GPS-aided applications. Taking the application one step further, General Dynamics has developed the GPS Interference Location System (GILS) that ties directly to GAMES. When GAMES detects an anomaly, GILS begins to search for the interference(s) source and passes the collected data to the web server where the location is computed and reported. This sensor will be described and test results will be presented to demonstrate the applicability and use for commercial as well as military use. By implementing GAMES, GILS and GIANT the question behind GPS reliability is a thing of the past, which will allow for increased use and reliance on GPS. The knowledge gained from the development and application of these tools is one of the fundamental building blocks for this effort. This project developed a proof-of-concept that quantified the capability realized from being able to both detect and locate sources of interference during a GPS anomaly or interference event. This includes determining the benefits of interference identification for a variety of critical civil applications, and providing insights to help mitigate potential adverse impacts. The technical approaches undertaken are outlined, results-to-date presented, and recommendations discussed on how to take this project from proof-of-concept to fielded system.
机译：Volpe国家运输系统中心发布的一份报告，标题为“依赖全球定位系统的运输基础设施的脆弱性评估”（2001年8月29日），报告指出：“民用运输基础设施正在寻求GPS带来的效率提高。如果服务中断并且应用程序的准备工作没有缓解设备和操作程序，那么对GPS的依赖会导致严重的后果。” Volpe报告的调查结果除其他外，建议：“在任何不能容忍GPS丢失的应用中，都应实施或利用监视，报告和定位意外干扰的系统和程序”。本文将讨论使用GPS异常监视设备套件（GAMES）来检测和报告GPS异常。本文将通过测试结果讨论系统性能，并演示GAMES如何用于关键基础设施保护。将提供数据以显示可能发生的不同异常，并演示GAMES将处理此类异常。 GAMES可为用户提供有关GPS精确度的实时报告，通过使用GPS干扰和导航工具（GIANT），用户可以在不久的将来预测GPS的准确性和有效性。这些工具的组合创建了一个“系统”，可用于监视和评估GPS环境并确定对GPS辅助应用程序的影响。通用动力公司将应用程序进一步向前发展，开发了与GAMES直接相关的GPS干扰定位系统（GILS）。当GAMES检测到异常时，GILS开始搜索干扰源，并将收集到的数据传递到Web服务器，在该Web服务器中计算并报告位置。将描述该传感器并提供测试结果，以证明其在商业和军事用途中的适用性和用途。通过实施GAMES，GILS和GIANT，GPS可靠性背后的问题已成为过去，这将允许更多的使用和对GPS的依赖。从这些工具的开发和应用中获得的知识是这项工作的基本组成部分之一。该项目开发了一种概念证明，量化了在GPS异常或干扰事件期间能够检测和定位干扰源所实现的功能。这包括确定干扰识别对于各种关键民用应用的好处，并提供见解以帮助减轻潜在的不利影响。概述了所采用的技术方法，提供了最新的结果，并讨论了有关如何将该项目从概念验证转移到现场系统的建议。

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