| 基于FPGA的梯度自适应格型滤波器设计 |
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| 引用本文： | 孙松. 基于FPGA的梯度自适应格型滤波器设计[J]. 信息技术, 2007, 31(9): 88-90 |
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| 作者姓名： | 孙松 |
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| 作者单位： | 黄石理工学院电气与电子信息工程学院,黄石,435003 |
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| 摘 要： | 对于高灵敏度的数字信号的处理需要使用数值特性优良的格型滤波器。利用EDA技术设计了梯度自适应格型滤波器。实验表明更新反射系数的步长应随着模块数的增加逐步减小。对梯度自适应格型滤波器的单独模块采用驰豫超前技术设计,显著提高了FPGA的运行时钟速率。
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| 关 键 词： | 梯度自适应格型滤波器 现场可编程门阵列 流水线 反射系数 |
| 文章编号： | 1009-2552（2007）09-0088-03 |
| 修稿时间： | 2007-05-29 |
FPGA implementation of gradient adaptive lattice filter |
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| SUN Song. FPGA implementation of gradient adaptive lattice filter[J]. Information Technology, 2007, 31(9): 88-90 |
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| Authors: | SUN Song |
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| Affiliation: | School of Electric and Electronic Information Engineering, Huangshi Institute of Tedmoiogy, Huangshi 435003, China |
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| Abstract: | The lattice filter with excellent numerical character is used to process high sensitivity digital signal.A gradient adaptive lattice filter was realized with FPGA using EDA(Electronic Design Automatic) technology.The experiment shows that the fixed step of estimated reflection coefficients must be gradually reduced with the increase of modules.The technology of delay leading transfer was utilized in GALF's internal modules,appropriate delay parameters can obviously increase the clock frequency of adaptive filter's system. |
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| Keywords: | GALF(gradient adaptive lattice filter) FPGA pipeline reflection coefficient |
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