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中文摘要：
为了得到符合运动模拟器要求的输入信号,提出了一种信号复现算法,通过频谱分析提取原始信号主频率成分,将其作为复现信号的基频,以保证复现信号与原始信号具有相同的频率成分;然后通过调整各频率成分对应的相位偏置,利用遗传算法对这些相位偏置进行优化,最终得到所需要的运动仿真信号表达式。结果表明：所获得的复现信号符合工作空间范围,并满足运动模拟器性能要求。
英文摘要：
In order to generate the input signals for motion simulation,a novel signal regenerating algorithm was presented.Through the spectrum analysis,the main frequency components of the initial signal could be selected and were used as the basic frequency of the regenerated signal.Therefore,both the initial and regenerated signals have the same frequency component.Through adjusting phase offset versus each frequency component and using the genetic algorithm,phase offsets for the regenerated signal could be optimized.Finally,expressions of the regenerated signals could be obtained.Result shows that regenerated signals got by the expressions accord with working spatial range and can meet all requirements of the motion simulator.
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