基于ADS-B多特征迁移学习的GNSS干扰检测方法
A GNSS Interference Detection Method Utilizing Multi-Feature Transfer Learning from ADS-B Data
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摘要: 全球导航卫星系统(Global Navigation Satellite System, GNSS)是现代航空系统的重要基础,其极易受到射频干扰,这可能导致航班备降、复飞或进近中止等情形,对航空安全造成严重影响。广播式自动相关监视(Automatic Dependent Surveillance-Broadcast, ADS-B)依赖于GNSS获取飞机位置信息,当GNSS受到射频干扰时,ADS-B的可用性也会受到影响。基于ADS-B数据来进行GNSS干扰检测成为一种可行的解决方案。针对现有基于ADS-B数据的GNSS干扰检测模型存在无法兼容多个ADS-B版本,难以适应我国国情的问题,以GNSS干扰事件中的ADS-B数据为研究对象,分析其在干扰条件下的特点,包括航迹波动和导航质量指标的变化特性。引入滑动窗口技术,动态计算统计特征并扩展特征维度,以更全面准确地反映干扰影响;提出了一种结合长短期记忆网络自编码器(Long Short-Term Memory-AutoEncoder, LSTM-AE)与领域对抗神经网络(Domain Adversarial Neural Network, DANN)的GNSS干扰检测方法。该方法通过LSTM-AE提取不同版本ADS-B的特征,并将其映射到同一个特征空间,提供一致的特征表示;采用DANN网络实现对DO-260A/B版本ADS-B数据(源域)中GNSS干扰的检测,并借助DANN的迁移学习能力,使其适应于DO-260版本的ADS-B数据(目标域),从而实现跨版本的高效检测。实验结果表明,所提出的LSTM-AE-DANN模型在DO-260、DO-260A/B版本的ADS-B数据集上均表现出优秀的检测性能和更强的适用性,适合我国国情,具有显著的实用价值。Abstract: The global navigation satellite system (GNSS) serves as a critical foundation for modern aviation systems; however, it is highly vulnerable to radio frequency interference, which can result in flight diversions, go-arounds, or aborted approaches, posing serious risks to aviation safety. automatic dependent surveillance-broadcast (ADS-B), which depends on GNSS for acquiring aircraft position information, is similarly affected when GNSS is subject to radio frequency interference, thereby compromising the availability of ADS-B. Detecting GNSS interference detection based on ADS-B data has become a feasible solution. To overcome the limitations of existing GNSS interference detection models, such as incompatibility with multiple ADS-B versions and inadequate adaptability to China’s specific operational environment, this study focuses on analyzing ADS-B data collected during GNSS interference events. This research investigates the characteristics under interference conditions, including trajectory fluctuations and variations in navigation quality indicators. By incorporating a sliding window technique, statistical features are dynamically computed, and the feature dimensions are expanded to more comprehensively and accurately capture the impact of interference. A novel GNSS interference detection method is proposed, integrating a long short-term memory-autoencoder (LSTM-AE) with a domain adversarial neural network (DANN). The LSTM-AE extracts features from ADS-B data across different versions and maps them into a unified feature space, ensuring consistent feature representations. The DANN network is subsequently utilized to detect GNSS interference in DO-260A/B version ADS-B data (source domain), while leveraging DANN’s transfer learning capability to adapt to DO-260 version ADS-B data (target domain), thereby enabling efficient cross-version detection. Experimental results indicate that the proposed LSTM-AE-DANN model achieves superior detection performance and robust adaptability across both DO-260 and DO-260A/B version ADS-B datasets. This approach is particularly well suited for China’s aviation system requirements and holds substantial practical value.