A New Roll Angle Fusion Method Based on High Confidence Fusion Strategy

Roll angle is one of the important parameters for the guidance of rotating carrier, and the precision of measurements is positively related to the precision of hitting for two-dimensional guidance. In order to improve the precision of measurements of roll angle and eliminate the influence of measuring errors in online data, it is necessary to make fusion of the roll angle measurements from Beidou receiver. In this paper, a new roll angle fusion method based on high confidence fusion strategy is proposed. By designing the high confidence fusion strategy and its fusion process, a set of high confidence fusion strategy is formed naturally, which integrates the general data fusion methods such as variance, information entropy, Euclidean distance and so on. Based on the high confidence fusion strategy, adaptive weighted optimization and normalized fusion are carried out. In the final, the high confidence integrated decision-making results with rejection probability are obtained as a results. The experiment test shows that the method proposed can significantly enhance the accuracy and reliability of roll angle estimation.