| 基于CSD量化的数字滤波器的设计 |
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| 引用本文： | 印敏,蔡跃明.基于CSD量化的数字滤波器的设计[J].解放军理工大学学报,2003,4(1):35-38. |
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| 作者姓名： | 印敏 蔡跃明 |
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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
(印敏)，解放军理工大学通信工程学院 江苏南京210007(蔡跃明) |
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| 摘 要： | 数字滤波器在数字信号处理中占有举足轻重的地位。针对当前滤波器资源消耗大的问题，仔细研究了基于CSD（Canonic Signed-Digit)量化的滤波器设计方法，并对以往的CDS量化过程进行了改进，提出了一种降低滤波器运算量的改进方法，给出了设计基于CSD量化的滤波器的参考意见。仿真结果表明：改进后的算法对滤波器频率特性有一定改善，系统硬件实现时的存储资源也有所减少。
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| 关 键 词： | CSD量化 数字滤波器 运算量 数字信号处理 设计方法 频率特性 |
| 文章编号： | 1009-3443(2003)01-0035-04 |
| 修稿时间： | 2002年7月8日 |
Design of Digital Filter Based on CSD Quantizer |
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| YIN Min and CAI Yue-ming.Design of Digital Filter Based on CSD Quantizer[J].Journal of PLA University of Science and Technology(Natural Science Edition),2003,4(1):35-38. |
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| Authors: | YIN Min and CAI Yue-ming |
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| Institution: | Institute of Communications Engineering, PLA Univ. of Sci.& Tech.,Nanjing 210007,China;Institute of Communications Engineering, PLA Univ. of Sci.& Tech.,Nanjing 210007,China |
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| Abstract: | Digital filter plays a vital role in digital signal processing,with heavy cost of resources. In this paper,filter design method based on CSD quantizer is addressed,with the CSD qauntizer improved,an improved method used in reducing complexity of the filter is put forward,and reference opinions about this filter design method are presented. The simulation result demonstrates that improved quantizer surely has some good effects on filter's frequency characteristic and storage resources are reduced during hardware realization. |
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| Keywords: | CSD quantizer digital filter computation reduction |
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