The trajectory generator is an important tool for the algorithm research and simulation verification of inertial navigation systems and their integrated navigation systems.By exploring and analyzing the re-search status of trajectory generators in different carriers,the design methods and main ideas of the ideal,nu-merical algorithm and mathematical model trajectory generators are outlined,and the research focuses are summarized.The three types of trajectory generators are then simulated and compared,and their characterist-ics and problems are analyzed.Finally,possible prospects for the next step in trajectory generator research are briefly discussed,providing ideas for future research in this field.
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