Extending the Applications and Improving the Efficiency of Positioning Through the Exploitation of New GNSS Signals

利用新的GNSS信号扩展应用并提高定位效率

• 批准号: EP/G019622/1
• 负责人: Marek Ziebart
• 金额: $ 93.51万
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2009
• 资助国家: 英国
• 起止时间: 2009 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FG019622%2F1
• 关键词: Extending; Applications; Improving; Efficiency; Positioning

Over the past three decades the US GPS (Global Positioning System) has evolved from a system designed to provide metre-level positioning for military applications to one that is used for a diverse range of unforeseen, and mainly civilian, applications. This evolution has been both driven and underpinned by fundamental research, including that carried out at UK universities, especially in the fields of error modeling, receiver design and sensor integration. However, GPS and its current augmentations still cannot satisfy the ever increasing demands for higher performance. For instance there is insufficient coverage in many urban areas, it is not accurate enough for some engineering applications such as the laying of road pavements and receivers cannot reliably access signals indoors.However things are changing rapidly. Over the next few years the current GNSSs (Global Satellite Navigation Systems) are scheduled to evolve into new and enhanced forms. Modernised GPS and GLONASS (Russia's equivalent to GPS) will bring new signals to complement those that we have been using from GPS for the last 30 years. Also we will see the gradual deployment of new GNSSs including Europe's Galileo and China's Compass systems, so leading to at least a tripling of the number of satellite available today by about 2013 - all with signals significantly different from, and more sophisticated than, those used today.These new signals have the potential to extend the applications of GNSS into those areas that GPS alone cannot satisfy. They will also enable the invention of new positioning concepts that will significantly increase the efficiency of positioning for many of today's applications and stimulate new ones, especially those that will develop in conjunction with the anticipated fourth generation communication networks to provide the location based services that will be essential for economic development across the whole world, including the open oceans. This proposal seeks to undertake a number of specific aspects of the research that is necessary to exploit the new signals and to enable these new applications. They include those related to the design of new GNSS sensors, the modeling of various data error sources to improve positioning accuracy, and the integration of GNSSs with each other and with other positioning-related inputs such as inertial sensors, the eLORAN navigation system, and a wide rage of pseudolite and ultra-wide band radio systems. We are also seeking to find new ways to measure the quality of integrated systems so that we can realistically assess their fitness for specific purposes (especially for safety-critical and legally-critical applications). As part of our work we will build an evaluation platform to test our ideas and validate our discoveries.The proposal builds on the unique legacy of the SPACE (Seamless Positioning in All Conditions and Environments) project, which was a successful EPRSC-funded research collaboration framework that brought together the leading academic GNSS research centres in the UK, with many of the most important industrial organisations and user agencies in the field. The project laid the foundation for an effective, long-term virtual academic team with an efficient interface to access industry's needs and experience. The research proposed here will be carried out within a new collaboration framework (based on SPACE) involving four universities (UCL, Imperial, Nottingham and Westminster) and nine industrial partners (EADS Astrium, Ordnance Survey, Leica Geosystems, Air Semiconductors, ST Microsystems, Thales Research and Technology, QinetiQ, Civil Aviation Authority and NSL). The industrial partners have pledged almost 2M of in-kind support and the proposed management structure, led by one of the industrial partners, is carefully designed to foster collaboration and to bring to bear our combined facilities and resources in the most effective manner.

在过去三十年中，美国 GPS（全球定位系统）已从一种旨在为军事应用提供米级定位的系统发展成为用于各种不可预见的（主要是民用）应用的系统。这种演变受到基础研究的推动和支撑，包括英国大学开展的基础研究，特别是在误差建模、接收器设计和传感器集成领域。然而，GPS 及其当前的增强功能仍然无法满足对更高性能不断增长的需求。例如，许多城市地区的覆盖范围不足，对于一些工程应用（例如道路铺设）来说不够准确，接收器无法在室内可靠地接收信号。然而，情况正在迅速发生变化。在接下来的几年中，当前的 GNSS（全球卫星导航系统）预计将演变成新的增强型形式。现代化的 GPS 和 GLONASS（俄罗斯相当于 GPS）将带来新的信号来补充我们过去 30 年一直使用的 GPS 信号。此外，我们还将看到新的 GNSS 的逐步部署，包括欧洲的伽利略系统和中国的北斗系统，从而导致到 2013 年左右，现有卫星数量至少增加两倍 - 所有信号都与当今使用的信号显着不同，并且更加复杂。这些新信号有可能将 GNSS 的应用扩展到仅靠 GPS 无法满足的领域。它们还将促进新定位概念的发明，从而显着提高当今许多应用的定位效率，并刺激新的应用，特别是那些将与预期的第四代通信网络结合开发的应用，以提供对包括公海在内的全世界经济发展至关重要的基于位置的服务。该提案旨在开展一些研究的具体方面，这些研究对于利用新信号和实现这些新应用是必要的。其中包括与新型 GNSS 传感器的设计、对各种数据误差源进行建模以提高定位精度以及 GNSS 相互集成以及与其他定位相关输入（例如惯性传感器、eLORAN 导航系统以及各种伪卫星和超宽带无线电系统）的集成相关的问题。我们还寻求寻找新的方法来衡量集成系统的质量，以便我们能够实际评估它们对特定用途的适用性（特别是对于安全关键和法律关键的应用）。作为我们工作的一部分，我们将建立一个评估平台来测试我们的想法并验证我们的发现。该提案建立在 SPACE（所有条件和环境下的无缝定位）项目的独特遗产之上，该项目是一个由 EPRSC 资助的成功研究合作框架，汇集了英国领先的学术 GNSS 研究中心以及该领域许多最重要的工业组织和用户机构。该项目为有效、长期的虚拟学术团队奠定了基础，并通过高效的界面来获取行业的需求和经验。这里提出的研究将在一个新的合作框架（基于 SPACE）内进行，涉及四所大学（伦敦大学学院、帝国理工学院、诺丁汉大学和威斯敏斯特大学）和九个工业合作伙伴（EADS Astrium、英国地形测量局、徕卡地理系统、空气半导体、意法半导体、泰雷兹研究与技术、QinetiQ、民航局和 NSL）。工业合作伙伴已承诺提供近 200 万实物支持，拟议的管理结构由其中一位工业合作伙伴领导，经过精心设计，以促进合作并以最有效的方式利用我们的综合设施和资源。

项目成果

Improved network-based single-epoch ambiguity resolution using centralized GNSS network processing

• DOI: 10.1007/s10291-012-0256-x
• 发表时间: 2012
• 期刊: GPS Solutions
• 影响因子: 4.9
• 作者: N. Zinas;A. Parkins;M. Ziebart

A Novel Positioning and Integrity Monitoring Algorithm for a Multiple Constellation Receiver

• 发表时间: 2011
• 作者: S. Feng;C. Milner;A. Jokinen;W. Ochieng;C. Hide;T. Moore;C. Hill;M. Ziebart;M. Bahrami;P. Groves;Ziyi Jiang

Development of a Kalman filter based GPS satellite clock time-offset prediction algorithm

• DOI: 10.1109/eftf.2012.6502355
• 发表时间: 2012-04
• 期刊: 2012 European Frequency and Time Forum
• 作者: John Davis;S. Bhattarai;M. Ziebart