An EU-funded initiative has developed a low-cost positioning and navigation system for unmanned aerial systems (UASs). Utilizing multiple-antenna, the device is based on off-the-shelf components and advanced data fusion algorithms.
UASS对在农业，公共安全，智慧城市，可持续资源管理以及许多其他领域的使用引起了人们的兴趣。现在，人们对负担得起，可靠的系统有很大的需求，可以为这些设备提供态度和位置的估计。
The EU-funded Horizon 2020Glad-2project addressed this need, developing a low-cost attitude determination and navigation system. This system computes low-level data received via a multi-antenna global navigation satellite system (GNSS).
这项工作涉及对算法，硬件和软件重新设计，详尽精致的深入分析以及重复的现场测试。西班牙科技公司Acorde的项目协调员EstherLópez说：“我们创建了一个低成本平台，可以通过仔细选择和评估商业现成组件以及对高级数据融合算法的实施来适应不同的用户需求。”
More is better
研究人员使用了低成本的GNSS接收器以及高级数据融合以及惯性测量单元，以及晴雨表数据来增强UASS在恶劣的GNSS环境中的态度和位置。该系统还避免了使用磁力计的使用，使其对磁场免疫，并在修改磁性环境时消除了对系统校准的需求。
工程师选择不同的GNSS天线和measured their performance according to technical and economic criteria. A multi-antenna approach enabled UASs to take accurate headings without suffering the usual problems inherent to magnetometers. “The use of multiple antennae will help to improve positioning, while the inclusion of a barometer will decrease recovery time in the event of GNSS signal outages,” López explains.
Commercialisation of the system was conducted in parallel with the harmonisation of regulations in Europe thus fostering this niche market, particularly in magnetic interference sensitive applications. Regulation, market analysis and feedback from third parties helped to define requirements concerning electrical and mechanical constraints, interface definitions and software.
便宜，准确和可靠
GNSS和惯性数据的成功融合实现了准确可靠的导航。根据洛佩兹（López）的说法，惯性传感器以非常高的数据速率提供了出色的动态响应，而GNSS则是防止漂移的绝对参考。此外，差异GNSS载体相测量可用于使用多乙烯构构型获得方向的准确性。”
Glad-2successfully achieved the commercialization of a low-cost navigation system based on sensor fusion and a multi-antenna platform. This culminated in the European Conformity (CE) certification mark following the corresponding certification process. The CE mark indicates conformity with health, safety, and environmental protection standards for products sold within the European Economic area.
最终结果是针对导航系统市场低成本领域的高度竞争产品。洛佩兹指出：“由于其灵活性，系统不仅在UASS中，而且在陆地和海上环境应用程序中都满足了广泛的用户需求。”
提交以下：快速原型制作
