| 一种基于模糊推理的内插滤波器设计与实现 |
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| 引用本文： | 邓军,杨银堂.一种基于模糊推理的内插滤波器设计与实现[J].东北师大学报(自然科学版),2011,43(2):72-76. |
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| 作者姓名： | 邓军 杨银堂 |
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| 作者单位： | 西安电子科技大学电子工程学院;西安电子科技大学微电子学院; |
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| 基金项目： | 国家杰出青年科学基金资助项目(60725415); 国家自然科学基金资助项目(60676009); 陕西省科学技术研究发展计划项目(2009K08-30) |
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| 摘 要： | 全数字接收机中已有的拉格朗日立方内插滤波器Farrow结构采用固定的实现系数,在对高效调制信号进行解调时误码率较高.在此基础上,经过大量实验,设计了一种基于模糊推理的内插滤波器,根据分数间隔μ的变化,自动控制滤波器的实现系数.仿真和实验结果表明,改进后的内插滤波器降低了误码率,得到了良好的效果.
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| 关 键 词： | 内插滤波器 分数间隔 模糊推理 误码率 |
The design and implementation of an interpolation filter based on fuzzy inference |
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| DENG Jun,YANG Yin-tang.The design and implementation of an interpolation filter based on fuzzy inference[J].Journal of Northeast Normal University (Natural Science Edition),2011,43(2):72-76. |
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| Authors: | DENG Jun YANG Yin-tang |
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| Institution: | DENG Jun1,2,YANG Yin-tang2(1.School of Electronics Engineering,Xidian University,Xi'an 710071,China,2.School of Microelectronics,China) |
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| Abstract: | Because of using changeless coefficients,the existing Farrow structure of Lagrange interpolation filter has a high bit error rate for the demodulation of high effective modulated signals.By a mass of experimentation,an interpolation filter base on fuzzy inference is designed.It can control the coefficients of filter with fractionally spaced change.Simulation and experimentation results show that the improved interpolation filter reduces bit error rate.So the good effect is gained. |
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| Keywords: | interpolation filter fractionally spaced fuzzy inference bit error rate |
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