A Multi-source Heterogeneous Flight Accident Track Data Fusion Method
A multi-source heterogeneous data and flight accident technology, applied in the field of flight accident data processing, can solve the problems of flight accident data heterogeneity, asynchrony, abnormality, etc.
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[0016] The technical solution of the invention will be described in detail below in conjunction with the accompanying drawings.
[0017] In the implementation process of multi-source data fusion, such as figure 1 As shown, there are several main steps required. Firstly, a unified time reference correction is performed on various data sources to ensure that various data are synchronized at each time sampling point; then, abnormal state data is performed on FDR data or QAR data. Then, use the flight dynamics model FDM of the corresponding aircraft type to trim the FDR data and the QAR data interruption position, and carry out necessary data supplementation. If the sampling points of some parameters of the FDR are too sparse, the Interpolation and FDM weighted average methods can be used to generate new data points; finally, the supplementary data and heterogeneous data such as CVR and ATC radar video data are heterogeneously fused to generate the final flight state estimator. T...
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