DIA-估计器和多维模型的错误规范:基于GNSS的无人机定位安全分析
Sebastian Ciuban1, Peter J G Teunissen1,2,3, Christian C J M Tiberius1
1Department of Geoscience and Remote Sensing, Delft University of Technology, Delft, The Netherlands.
GPS solutions
|March 12, 2026
概括
本研究介绍了使用检测,识别和适应 (DIA) 估计器进行定位安全分析,以评估多维模型错误. 它量化定位故障概率,对于汽车和航空等安全关键系统至关重要.
科学领域:
- 导航系统 导航系统
- 统计信号处理 统计信号处理
- 航空航天工程 航空航天工程
背景情况:
- 模型的错误规范,特别是多维的,如同时异常值,在参数估计和假设测试中带来了挑战.
- 现有的研究往往侧重于检测和识别这些错误规范,不太关注它们对定位安全的影响.
- 安全关键的应用 (汽车,航空,铁路,海事) 需要具有可量化的故障概率的稳健定位.
研究的目的:
- 基于检测,识别和适应 (DIA) 估计器提出一个定位安全分析框架.
- 调查多维模型错误规范对DIA估计器概率密度函数 (PDF) 的影响.
- 为了制定和量化安全关键导航系统的定位故障的概率.
主要方法:
- 利用DIA估计器框架,在多维模型错误规范下分析定位安全.
- 开发了制定和量化定位失效概率及其条件组件的方法.
- 在荷兰使用带有GPS接收器的无人机进行了基于模拟的研究,在24小时内分析了固定和可变的卫星几何形状.
主要成果:
- 该研究量化了定位故障的概率,这是导航系统的关键安全指标.
- 分析揭示了对DIA估计器的PDF结构的见解,包括多模式和相对于安全区域的定位.
- 模拟证明了GPS卫星几何学的影响定位安全评估.
结论:
- 该DIA估计器框架为定位安全分析提供了一个强大的方法,特别是在多维模型错误规范方面.
- 量化定位故障概率对于确保生命关键导航应用程序的安全至关重要.
- 提出的方法可用于多传感器配置,其他GNSS星座和各种安全关键应用.
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