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首页> 外文会议>International Technical Meeting of the Satellite Division of The Institute of Navigation >SBAS-Africa: A Cost Effective Southern African Solution Serving Multiple Market Sectors
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SBAS-Africa: A Cost Effective Southern African Solution Serving Multiple Market Sectors

机译：SBAS-AFFRA：用于多个市场部门的南方非洲南方非洲解决方案

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Satellite Based Augmentation System (SBAS) capabilities were pioneered by the United States of America (with WAAS) and the European Union (with EGNOS) with the aim of delivering safety-of-life navigation services to the civil aviation sector and have now been deployed by other nations including GAGAN in India and MSAS in Japan. All these nations benefit both economically and socially from improved navigation services not only in the aviation sector but also across the wide range of markets that have adopted GNSS. Nevertheless due to the differences in needs and financial situation, the countries of Africa have not had the same opportunity to take advantage of all the benefit that an SBAS can deliver. SBAS-Africa is a 12 month initiative that has successfully deployed an end-to-end SBAS testbed with a live signal in space that demonstrates the potential benefits of implementing SBAS capabilities in Southern Africa. SBAS-Africa, led by Avanti Communications PLC (Avanti) was co-funded by the United Kingdom Space Agency (UKSA) through its International Partnerships Space Programme (IPSP) programme. With the collaboration of GMV, NSL, Pildo Labs, Thales UK, the South African National Space Agency (SANSA), Ghana Council for Scientific and Industrial Research and the Agency for Aerial Navigation Safety in Africa and Madagascar (ASECNA), SBAS-Africa delivered a real-time SBAS signal for the southern part of the African continent. GNSS monitoring stations developed by NSL were deployed on the ground while communication (often in very remote locations) was assured by the Avanti high throughput satellite HYLAS 2. The SBAS messages are then generated by GMV's magicSBAS tool and broadcast via ARTEMIS satellite - originally an ESA EGNOS test satellite which is now owned and operated by Avanti PLC. The testbed immediately improves GPS accuracy assuring integrity confidence levels and showcases many benefits across a large variety of applications within different sectors. The objectives of SBAS-Africa (http://sbas-africa.avantiplc.com/), are to capture the service provision requirements for an African SBAS, to deploy an SBAS demonstrator and run demonstrations, to understand the likely benefits and build operational SBAS business cases for key stakeholders and finally to identify the way forward so that South African authorities are able to make a safe bet without investing so much as it was done initially in America and Europe. One of the expected outcomes of SBAS-Africa is the acceleration in the adoption of an operational SBAS for Africa. The African SBAS needs are different, there are fewer commercial aviation movements and the major benefits are likely to be agriculture, geomatics, logistics, maritime and general aviation. But SBAS does not only bring economic benefits, it also can bring various societal benefits. Indeed it will stimulate innovation, attract inward investment, create high-value jobs, reduce imports and open up new export markets, save lives, increase productivity, improve the environment, reduce inequality, encourage social cohesion in rural communities and enhance the standard of living for many South Africans. This paper gives an overview of SBAS-Africa describing the system architecture and developments that have taken place that, through a combination of commercial off the shelf GNSS and satcom components and the ingenuity of the consortium members, has led to a live cost-effective operational system within one year. The paper then assesses the performances and immediate benefits across different market sectors. Trials were run throughout South Africa across these sectors, including flight tests in Johannesburg and Pretoria, precise agriculture trials in Stellenbosch, UAVs in the Western Cape and Potchefstroom and maritime in Cape Town. Performances of the trials are assessed in terms of the achieved accuracy, continuity, integrity and availability.
机译：基于卫星的增强系统（SBAS）能力由美国（WASA）和欧盟（egnos）开创，目的是向民用航空部门提供寿命安全导航服务，并且现已部署由其他国家在印度和日本MSA的其他国家。所有这些国家都在经济上和社会方面都受益于航空部门的改进的导航服务，而且在航空部门跨越通过GNSS的广泛市场。然而，由于需求和财务状况的差异，非洲国家没有相同的机会利用SBA可以提供的所有福利。 SBAS-Africa是一个12个月的举措，已成功部署了一个在空间中的现场信号测试的端到端SBA，这证明了在南部非洲实施SBAS功能的潜在好处。由Avanti Communications Plc（Avanti）领导的SBAS-Africa由英国航天局（UKSA）共同资助其国际合作伙伴空间计划（IPSP）计划。凭借GMV，NSL，Pildo Labs，南非国家空间机构（SANSA），加纳科学和工业研究委员会的GMV，NSL，南非国家航天委员会和非洲的空中航行安全机构（ASECASCAR（ASECAL），SBAS-Africa提供非洲大陆南部的实时SBAS信号。由NSL开发的GNSS监测站在地面上部署，而Avanti高吞吐量卫星Hylas确保通信（通常在非常远程位置）。然后通过GMV的Magicsbas工具和通过Artemis Satellite播出的SBAS消息 - 最初是ESA EGNOS测试卫星现在由Avanti PLC拥有和操作。该试验台立即提高GPS精度确保完整性置信水平，并在不同部门内的各种应用中展示许多益处。 SBAS-AFFRA（http://sbas-africa.avantiplc.com/）的目标是捕获非洲SBA的服务提供要求，部署SBAS示威者并运行演示，以了解可能的福利和建立业务SBAS业务案例为主要利益攸关方，最后确定前进的方式，以便南非当局能够在不投资的情况下安全下注，因为它最初在美国和欧洲完成。 SBAS-Africa的预期结果之一是加快非洲运营SBA的加速。非洲人SBA的需求是不同的，商业航空运动较少，主要福利可能是农业，地理，物流，海事和一般航空。但SBA不仅带来经济效益，它也可以带来各种社会福利。事实上，它将刺激创新，吸引向内投资，创造高价值的工作，减少进口和开拓新出口市场，拯救生命，提高生产力，提高环境，减少不平等，鼓励农村社区的社会凝聚力，提升生活水平对于许多南非人。本文概述了SBAS-Africa描述了系统架构和开发，通过商业机架GNSS和SATCOM组件以及联盟成员的智慧，导致了现场经济高效的操作系统一年内。然后，该论文评估了不同市场部门的表现和立即效益。在整个部门的南非曾在整个部门跑步，包括在约翰内斯堡和比勒陀利亚的飞行试验，在斯泰伦博斯，西开普省和波德福多斯和开普敦的海上的大专院组织的精确农业试验。根据实现的准确性，连续性，完整性和可用性来评估试验的性能。

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