| 系统极零点与频率特性的关系 |
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| 引用本文： | 庞姣,王兰勋,李芬华,田晓燕.系统极零点与频率特性的关系[J].通信技术,2008,41(12). |
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| 作者姓名： | 庞姣 王兰勋 李芬华 田晓燕 |
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| 作者单位： | 河北大学,电子信息工程学院,河北,保定,071002 |
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| 摘 要： | 采用定量计算的方法,分析了单极点、单零点以及共轭极点、共轭零点对系统频率响应的影响.分析表明单极、零点时以及共轭极点、共轭零点位于特定区域时,系统频率响应的幅频峰值,谷值的频率与极、零点位置所在频率严格一致.通过对多极、零点系统幅频响应的分析得出结论,出现幅频峰值,谷值的频率相对极、零点位置所在频率可能有偏移,但是仍然可以说:极点所在频率位置附近频率响应幅度出现峰值,零点所在频率位置附近频率响应幅度出现谷点.
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| 关 键 词： | 幅频峰值 幅频谷值 极点 零点 频率位置 |
Relation between pole-zero and frequency characteristic of the system |
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| PANG Jiao,WANG Lan-xun,LI Fen-hua,TIAN Xiao-yan.Relation between pole-zero and frequency characteristic of the system[J].Communications Technology,2008,41(12). |
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| Authors: | PANG Jiao WANG Lan-xun LI Fen-hua TIAN Xiao-yan |
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| Institution: | PANG Jiao,WANG Lan-xun,LI Fen-hua,TIAN Xiao-yan (College of Electronic , Informational Engineering,Hebei University,Baoding Hebei 071002,China) |
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| Abstract: | Quantitative calculation menthod is adopted,and the effect of single pole-zero and conjugate pole-zero on frequency response of the system is analyzed.The analysis indicates that the frequency of breadth frequency peak value and valley value is located in the specific with the frequency of pole-zero locality when the pole-zero and conjugate pole-zero is located in the specific area.From the analysis on many pole-zero frequency response of the system,the conclusion is drawn.Frequency of breadth frequency pea... |
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| Keywords: | breadth frequency peak value breadth frequency vale value pole zero frequency locality |
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