| 窄带低通滤波的FPGA实现 |
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| 引用本文： | 周彪,陈建春,王尊民. 窄带低通滤波的FPGA实现[J]. 电子科技, 2007, 0(5): 12-16,25 |
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| 作者姓名： | 周彪 陈建春 王尊民 |
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| 作者单位： | 西安电子科技大学,电子工程学院,陕西,西安,710071;西安邮电学院,管理系,陕西,西安,710061 |
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| 摘 要： | 文中介绍两种滤波器设计方法,一种为內插级联滤波器,另一种为多抽样率滤波器,这两种方法可以实现过渡带极窄的低通滤波器,在中频直接采样的信号处理中,可以解决提取窄带信号的问题;将这两种方法加以仿真比较,在采用FPGA实现时,内插级联滤波器大大减少了窄带低通滤波器设计所需的乘法器。
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| 关 键 词： | 内插 抽取 窄带滤波 |
| 收稿时间： | 2006-09-12 |
| 修稿时间： | 2006-09-12 |
The Implementation of the Narrowband Lowpass Filter Based on FPGA |
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| Zhou Biao,Chen Jianchun,Wang Zunmin. The Implementation of the Narrowband Lowpass Filter Based on FPGA[J]. Electronic Science and Technology, 2007, 0(5): 12-16,25 |
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| Authors: | Zhou Biao Chen Jianchun Wang Zunmin |
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| Abstract: | Two FIR filter design methods (CIFIR and Multirate FIR) are proposed, both of which can implement lowpass filters with very sharp transition band. The methods can draw a narrowband signal out of the broadband IF signal. A comparison of the two methods shows that CIFIR greatly reduces the number of multipliers needed when using FPGA for implementation. |
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| Keywords: | interpolation decimation narrowband FIR filter |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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