| 基于时域积分的加速度信号处理 |
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| 引用本文： | 陈为真,汪秉文,胡晓娅.基于时域积分的加速度信号处理[J].华中科技大学学报(自然科学版),2010(1). |
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| 作者姓名： | 陈为真 汪秉文 胡晓娅 |
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| 作者单位： | 华中科技大学控制科学与工程系; |
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| 基金项目： | 国家自然科学基金资助项目(60773190,60802002); 湖北省科技攻关资助计划项目(2007AA101C47); 湖北省教育厅基金资助项目(D200618001); 985工程资助项目(985hust-13011) |
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| 摘 要： | 针对实际振动位移难以获取的问题,利用振动位移与加速度信号之间的关系,先对采样后的加速度信号采用时域数值积分,得到含有趋势项的速度信号及位移信号,再采用拟合多项式极值的方法,消除积分过程中产生的趋势项,从而得到更为精确的速度和位移信号.算例表明,利用拟合多项式极值消除趋势项的方法,得到的位移时程曲线拟合精度高.
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| 关 键 词： | 时域积分 加速度 位移 趋势项 拟合多项式 |
Acceleration signal processing by aumerical integration |
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| Chen Weizhen Wang Bingwen Hu Xiaoya.Acceleration signal processing by aumerical integration[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2010(1). |
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| Authors: | Chen Weizhen Wang Bingwen Hu Xiaoya |
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| Institution: | Chen Weizhen Wang Bingwen Hu Xiaoya(Department of Control Science and Engineering,Huazhong University ofScience and Technology,Wuhan 430074,China) |
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| Abstract: | In practical engineering,the collection of displacement data is more difficult than that of the acceleration data in the time-domain.Displacement signals was got from acceleration signals using aumerical integration,with the trend of error.Polynomial fitting method of extreme value to eliminate the trend of error was proposed.More precise displacement data can be acquired from this algorithm.The example shows that this algorithm can get high accuracy displacement data from the acceleration data more easily. |
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| Keywords: | aumerical integration acceleration displacement trend of error polynomial fitting |
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