| 软件无线电中高速FIR内插成型滤波器的设计和实现 |
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| 引用本文： | 吴斌,朱秀昌,朱洪波. 软件无线电中高速FIR内插成型滤波器的设计和实现[J]. 南京邮电大学学报(自然科学版), 2004, 24(1): 16-20 |
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| 作者姓名： | 吴斌 朱秀昌 朱洪波 |
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| 作者单位： | 南京邮电学院,通信工程系,江苏,南京,210003 |
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| 基金项目： | 铁道部科研基金(铁道部科研开发计划B2000X010)资助项目 |
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| 摘 要： | 从设计原理和软件实现两个方面对软件无线电中的FIR(有限长单位脉冲响应)内插成型滤波器的设计与实现的方法进行了分析。以降低滤波运算量,提高性能,减少数据缓存量与输出延迟为目标,采用基于子滤波器时分处理的多相滤波器的设计方法。在此基础上,运用切比雪夫逼近法来计算内插滤波器的频响,并针对具体的数字无线电台的内插滤波器的几种实现方案进行了比较。
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| 关 键 词： | 内插滤波器 软件无线电 切比雪夫逼近法 |
| 文章编号： | 1000-1972(2004)01-0016-05 |
| 修稿时间： | 2003-07-03 |
The Design and Implementation of High Speed Interpolation FIR Digital Filters in Software Defined Radio |
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| WU Bin,ZHU Xiu-chang,ZHU Hong-bo. The Design and Implementation of High Speed Interpolation FIR Digital Filters in Software Defined Radio[J]. JJournal of Nanjing University of Posts and Telecommunications, 2004, 24(1): 16-20 |
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| Authors: | WU Bin ZHU Xiu-chang ZHU Hong-bo |
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| Affiliation: | WU Bin,ZHU Xiu-chang,ZHU Hong-boDepartment of Communication Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China |
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| Abstract: | This paper discusses the methods of design and implementation of high speed interpolation FIR digital filters in software defined radio with the designing principle and software realization. Inorder to reduce computation, improve performance and reduce data buffering and output delay.We proposed an algorithm with using polyphase decomposition method and remez exchange method.Based on the algorithm,We use chebyshev approvmeted algortithm to caleulate frequency response of the filters,and compare it with some other methods. |
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| Keywords: | Chebyshev approximation Software defined radio Interpolation filter |
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