| 一种基频检测时域分析算法 |
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| 引用本文： | 刘卫.一种基频检测时域分析算法[J].青海师专学报,2008,28(5). |
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| 作者姓名： | 刘卫 |
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| 作者单位： | 青海师范大学物理系,青海西宁810008 |
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| 摘 要： | 利用数字信号处理的方法，对信号进行采样后，低通滤波；在时间域对信号进行非线性变换，改变信号的形状，进而检测变换后信号在单位时间内的上升沿数量，换算出信号基频．
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| 关 键 词： | 基频 数字信号处理 时域 |
A Algorithm of Recognition of Frequehcy on Analyzing Time Domain |
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| LIU Wei.A Algorithm of Recognition of Frequehcy on Analyzing Time Domain[J].Journal of Qinghai Junior Teachers' College,2008,28(5). |
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| Authors: | LIU Wei |
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| Institution: | LIU Wei(Department of Physics of Qinghai Normal University,Xining Qinghai 810008,China) |
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| Abstract: | Signal which was sampled by DSP methods was filtered by digital lowpass filter.Then the shape of the signal was changed by nonlinearity transforming.After transforming,the number of the signal rising edges would be counted in unit interval.Basic frequency of the signal would be worked out. |
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| Keywords: | Basic frequency DSP Time domain |
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