| “数字信号处理”课程中双线性变换法的探讨 |
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| 引用本文： | 童晓兵,张玉明,徐以涛. “数字信号处理”课程中双线性变换法的探讨[J]. 电气电子教学学报, 2014, 0(2): 68-70 |
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| 作者姓名： | 童晓兵 张玉明 徐以涛 |
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| 作者单位： | 解放军理工大学通信工程学院,江苏南京210007 |
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| 基金项目： | 解放军理工大学通信工程学院重点教改科研项目（20110206） |
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| 摘 要： | 本文对"数字信号处理"课程中的双线性变换法进行了深入的研究和分析,首先解释了双线性变换法中频率畸变产生的原因,其次利用Matlab软件仿真了频率预畸与频率不预畸在双线性变换法中对IIR数字滤波器性能的影响,通过这种比较,使学生能更直观地掌握频率畸变和频率预畸在双线性变换法中的作用,为实际的滤波器设计打下良好的基础。本文最后讨论了双线性变换法和脉冲响应不变法的一个不同。
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| 关 键 词： | 双线性变换法 频率畸变 频率预畸 |
Analysis of Bilinear Transformation in Digital Signal Processing Course |
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| TONG Xiao-bing,ZHANG Yu-ming,XU Yi-tao. Analysis of Bilinear Transformation in Digital Signal Processing Course[J]. Journal of Electrical & Electronic Engineering Education, 2014, 0(2): 68-70 |
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| Authors: | TONG Xiao-bing ZHANG Yu-ming XU Yi-tao |
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| Affiliation: | ( Institute of Communication Engineering, PLA Univ. of Sci. ＆ Tech. , Nanjing 210007, China) |
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| Abstract: | In this paper, the concept of bilinear transformation in Digital Signal Process course is analyzed and re- searched deeply. Firstly, we explain the effect of frequency warping in the bilinear transformation solution. Then we compare the different effect of the performance of IIR digital filter between frequency pre-warping and frequency un-warping using Matlab software, which are helpful for those students who are learning the question of bilinear transformation solution and make a better basement for their future work. Finally, we discuss a different question between bilinear transformation method and impulse invariance method. |
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| 本文献已被 CNKI 维普 等数据库收录！ |
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