GNSS粗差检测的“快照”法与“滤波”法的比较研究
GNSS Fault Detection and Identification Performance Comparison of Snapshot and Filtering
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摘要: 利用实测大样本GPS/GLONASS观测数据分析基于“快照”和“滤波”的粗差检测和识别方法的性能。动态和静态数据检测结果表明,从误警率、漏检率、正确识别粗差率、计算时间、结果的可用性和精度上看,“滤波”检测法的检测和识别性能都航的连续性优于"快照"检测法;尤其是当多个粗差存在时,"滤波"检测法能更好地区分粗差观测,较好地保证了GNSS导。Abstract: The fault detection and identification methods of Snapshot and Filtering are applied to detect and identify the single and multiple faults GNSS observations.Compared the performances of false alarm rate,miss detection rate,correct identification rate,computation consuming time,availability and precision between Snapshot and Filtering methods,the Filtering FDI method performs,especially in multiple faults identification,is better than Snapshot method.
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