| 两种改进的由幅度谱确定最小相位信号的方法 |
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| 引用本文： | 李衍达,陈慧蓉.两种改进的由幅度谱确定最小相位信号的方法[J].清华大学学报(自然科学版),1986(6). |
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| 作者姓名： | 李衍达 陈慧蓉 |
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| 作者单位： | 自动化系
(李衍达)，自动化系(陈慧蓉) |
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| 摘 要： | 本文对谱因式分解方法中的柯尔莫廓洛夫（Ｋｏｌｍｏｓｏｒｏｆｆ）方法及由Ｔ．Ｆ．Ｑｕａｔｉｅｒｉ与Ａ．Ｖ．Ｏｐｐｅｎｈｅｉｍ等人提出的迭代方法分别作了改进，前者针对柯尔莫廓洛夫方法当信号在Ｚ平面上的零点离单位圆很近时产生很大误差的缺点，提出了检测误差与减少误差的方法，后者则松驰了Ｔ．Ｆ．Ｑｕａｔｉｅｒｉ等人提出的条件，从而扩大其应用范围。两种改进方法部有相应的计算例子，计算的结果与分析是一致的。
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| 关 键 词： | 信号处理 谱因式分解 |
Two Improved Methods of Spectral Factorization |
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| Li Yanda,Chen Huirong.Two Improved Methods of Spectral Factorization[J].Journal of Tsinghua University(Science and Technology),1986(6). |
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| Authors: | Li Yanda Chen Huirong |
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| Institution: | Department of Automation |
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| Abstract: | When the zeroes of a signal are very closed to the unit circle in the Z-plane, Kolmogoroff's method will cause a large error. An improved method was proposed in this paper. The error of Kolmogoroff's method can be detected and reduced by this method. Based on an iterative method proposed by T. F. Quatieri et al., we suggest an improved method in which s(0) is no necessary. Therefore, the improved method can be used in wide range. Some examples are given. |
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| Keywords: | signal processing spectral factorization |
| 本文献已被 CNKI 等数据库收录！ |
