| 理想低通欠采样定理的结合应用分析 |
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| 引用本文： | 罗正刚,彭圆,李桂娟,刘东涛.理想低通欠采样定理的结合应用分析[J].国际商务研究,2008,48(8). |
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| 作者姓名： | 罗正刚 彭圆 李桂娟 刘东涛 |
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| 作者单位： | 中国船舶重工集团第七六零研究所，西北工业大学航海学院 |
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| 摘 要： | 通过分析模拟频率与数字频率的对应关系,对含低频和不交叠窄带频率成分的信号推导得出对该类信号采样所需的最低采样率,提出了确定采样频率最小值的方法,改进了数字滤波器所对应的奈氏带宽。该方法可在不失真的情况下降低采样率,减少信号处理时间。
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| 关 键 词： | 信号处理 数字滤波器 奈氏带宽 采样 |
Analysis of the Combination Application of Sampling Ideal Low-pass and Band-pass Signal |
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| LUO Zheng-gang,PENG Yuan,LI Gui-juan,LIU Dong-tao.Analysis of the Combination Application of Sampling Ideal Low-pass and Band-pass Signal[J].International Business Research,2008,48(8). |
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| Authors: | LUO Zheng-gang PENG Yuan LI Gui-juan LIU Dong-tao |
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| Abstract: | The corresponding relationship between analog and digital frequency is analyzed to reduce the required sampling rate on a signal, which is composed of unlapped low-frequency and narrow band signals. It gives a method for determining the minimal sampling rate and improves the Nyquist band width to digital filter. The method can cut sampling rate rightly and decrease signal processing time. |
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| Keywords: | signal processing digital filter Nyquist band width sampling |
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