| 一种改进的CIC抽取滤波器设计 |
| |
| 引用本文： | 窦建华,梁红松,胡敏,汪荣贵. 一种改进的CIC抽取滤波器设计[J]. 系统工程与电子技术, 2008, 30(5): 984-986 |
| |
| 作者姓名： | 窦建华 梁红松 胡敏 汪荣贵 |
| |
| 作者单位： | 合肥工业大学计算机与信息学院,安徽,合肥,230009 |
| |
| 基金项目： | 安徽省自然科学基金 , 国家自然科学基金 |
| |
| 摘 要： | 针对软件无线电系统中CIC抽取滤波器的应用需要,提出一种改进CIC抽取滤波器的设计方法。该方法通过引入COSINE滤波器和采用非递归并行结构,有效的解决了传统滤波器在旁瓣抑制性能和增益方面的不足,提高了滤波器的旁瓣抑制比,输出噪声较小。改进的CIC抽取滤波器不需要乘法器,所以硬件实现简单,稳定性高。最后通过仿真证明了该方法的有效性。
|
| 关 键 词： | CIC抽取滤波器 幅频特性 cosine滤波器 非递归并行结构 |
| 文章编号： | 1001-506X(2008)05-0984-03 |
| 修稿时间： | 2007-04-26 |
Improved design of modified CIC decimator filters |
| |
| DOU Jian-hua,LIANG Hong-song,HU Min,WANG Rong-gui. Improved design of modified CIC decimator filters[J]. System Engineering and Electronics, 2008, 30(5): 984-986 |
| |
| Authors: | DOU Jian-hua LIANG Hong-song HU Min WANG Rong-gui |
| |
| Abstract: | To describe the theory of CIC decimator filter,a modified CIC decimator filter structure is proposed.The magnitude response of the filter is improved by using cosine profilers,the complexity of the filter is reduced by using non-recursive parallel structure and it is steady.The filter side lobe suppression ratio is improved and output noise is less.CIC taken to improve the filter does not need multiplier.Explain how to use the structure and the simulation result proves this structure is effective. |
| |
| Keywords: | cascaded integrator comb decimator filter magnitude characteristic cosine filter non-recursive parallel structure |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
