| 由时域信号的单边拉普拉斯变换求取其傅里叶变换留数法公式的导出及应用 |
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| 引用本文： | 徐昌彪.由时域信号的单边拉普拉斯变换求取其傅里叶变换留数法公式的导出及应用[J].重庆邮电学院学报(自然科学版),2000(2). |
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| 作者姓名： | 徐昌彪 |
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| 作者单位： | 重庆邮电学院电信工程系!重庆400065 |
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| 摘 要： | 从利用部分分式展开法在由时域信号的拉普拉斯变换求取其傅里叶变换入手 ,结合部分分式展开法和留数法在拉普拉斯反变换中的应用 ,得到了利用留数法由时域信号的单边拉普拉斯变换求取其傅里叶变换的公式 ,对此公式进行了严密的证明 ,并举例说明其应用
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| 关 键 词： | 时域信号 单边拉普拉斯变换 傅里叶变换 留数法 |
Derivations and Applications of the Formula by Residue Method for Time Signal's Fourier Transform from it's One side Laplace Transform |
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| XU Chang,biao.Derivations and Applications of the Formula by Residue Method for Time Signal''''s Fourier Transform from it''''s One side Laplace Transform[J].Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition),2000(2). |
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| Authors: | XU Chang biao |
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| Abstract: | Compared with the result respectively by partial fraction expansion method and residue method for inverse Laplace transform with the conclusion by partial fraction expansion method for time signal's Fourier transform from it's one side Laplace transform,the formula by residue method for time signal's Fourier transform from it's one side Laplace transform is presented. The formula is proved strictly through derivations,and the example is also used to show it's applications. |
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| Keywords: | time signal one side Laplace transform Fourier transform residue metho |
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