| 数字下变频中的FPGA高效滤波器设计 |
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| 引用本文： | 李夏,刘皓. 数字下变频中的FPGA高效滤波器设计[J]. 微型机与应用, 2009, 28(21) |
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| 作者姓名： | 李夏 刘皓 |
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| 作者单位： | 电子科技大学,通信抗干扰国家级重点实验室,四川,成都,610054 |
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| 摘 要： | 介绍了一种在FPGA上实现高效窄带有限冲击响应滤波器(FIR)的设计方法.该方法利用数字下变频抗混叠滤波器的多速率和窄带的特点,采用插值FIR滤波器(IFIR)和多相滤波器相结合的设计思路,实现了该滤波器的高效设计.
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| 关 键 词： | 多相滤波器 数字下变频 |
Design of FPGA optimized FIR filters in digital down converter |
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| LI Xia,LIU Hao. Design of FPGA optimized FIR filters in digital down converter[J]. Microcomputer & its Applications, 2009, 28(21) |
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| Authors: | LI Xia LIU Hao |
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| Abstract: | This paper mainly discusses the implementation of the area optimized narrow-band finite impulse response filters of digital down converter. To exploit the characteristic of multirate as well as narrow-band of the anti-overlap filters of DDC, the inter-polated FIR filter and the polyphase fiber are combined together to implement the area efficient decimation filter. |
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| Keywords: | IFIR interpolated finite impulse response polyphase filter digital down converter(DDC) |
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