| 一种特殊数字滤波器的优化结构 |
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| 引用本文： | 张幸幸,陆继承,李夏禹,俞军.一种特殊数字滤波器的优化结构[J].微电子学,2018,48(4):429-432. |
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| 作者姓名： | 张幸幸 陆继承 李夏禹 俞军 |
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| 作者单位： | 复旦大学 专用集成电路与系统国家重点实验室,上海 200433;复旦大学 微电子学院,上海 200433;上海复旦微电子集团股份有限公司,上海 200433,上海复旦微电子集团股份有限公司,上海 200433,上海复旦微电子集团股份有限公司,上海 200433,复旦大学 专用集成电路与系统国家重点实验室,上海 200433;复旦大学 微电子学院,上海 200433;上海复旦微电子集团股份有限公司,上海 200433 |
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| 摘 要： | 提出一种特殊数字滤波器的结构优化方案,可以简化滤波器结构、节省电路面积。将该方案应用于解调ISO/IEC 14443协议规定的PICC到PCD的副载波调制信号。在此基础上,改变子滤波器的位置,将长延迟链前移,减少了长延时链的数据位宽。综合结果表明,该滤波器的面积仅为传统滤波器的50%。
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| 关 键 词： | FIR滤波器 匹配滤波器 ISO/IEC14443协议 |
| 收稿时间： | 2017/10/26 0:00:00 |
An Optimized Structure for a Special Digital Filter |
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| ZHANG Xingxing,LU Jicheng,LI Xiayu and YU Jun.An Optimized Structure for a Special Digital Filter[J].Microelectronics,2018,48(4):429-432. |
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| Authors: | ZHANG Xingxing LU Jicheng LI Xiayu and YU Jun |
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| Institution: | State Key Lab of ASIC & System, Fudan University, Shanghai 200433, P.R.China;School of Microelectronics, Fudan University, Shanghai 200433, P.R.China;Shanghai Fudan Microelectronics Group Co., Ltd., Shanghai 200433, P.R.China,Shanghai Fudan Microelectronics Group Co., Ltd., Shanghai 200433, P.R.China,Shanghai Fudan Microelectronics Group Co., Ltd., Shanghai 200433, P.R.China and State Key Lab of ASIC & System, Fudan University, Shanghai 200433, P.R.China;School of Microelectronics, Fudan University, Shanghai 200433, P.R.China;Shanghai Fudan Microelectronics Group Co., Ltd., Shanghai 200433, P.R.China |
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| Abstract: | An optimized structure for a special digital filter was designed. The structure of filter could be simplified and the area of the circuit could be reduced effectively. It was applied to the demodulation of ISO/IEC 14443 in communication between PICC and PCD. Having changed the position of the sub-filter and moved the long delay chain forward, the bit width could be reduced. Finally, according to the results of synthesis, the area of the filter was reduced by 50% compared with that of the traditional filters. |
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| Keywords: | FIR filter matched filter ISO/IEC14443 protocol |
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