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In order to generate a continuous radar simulation image to meet the practical need of navigation simulator, a method is presented to generate radar simulation data extracted from multi-scale S-57 standard electronic charts. In this paper, outliers index algorithm based on forward distance is presented firstly to clip the boundary line. Then buffers are built to merge and de-duplicate data according to characteristics of the data fragmentation. Finally, the average edge-matching method and the attenuation edge-matching method based on error distribution theory are provided to connect the gap automatically between two images according to the scale and the data density of charts. In this paper, 13 pieces of S-57 standard electronic charts around Rizhao Port are taken as an example. The simulation results show that the radar image is clear and the line is smooth, which can reach the purpose of physical and logical seamless contiguity of the radar image. In conclusion, the generated radar simulation data meet the requirements for continuity of the radar simulation image in the navigation simulator.

Generation Algorithm of Radar Simulation Data Based on Electronic Chart Data