| 分数倍延时数字滤波器设计 |
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| 引用本文： | 范建俊,李强,李广军.分数倍延时数字滤波器设计[J].微电子学,2011,41(2):215-218. |
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| 作者姓名： | 范建俊 李强 李广军 |
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| 作者单位： | 电子科技大学,通信与信息工程学院,成都,611731 |
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| 基金项目： | 国家科技重大专项，国家863目标导向项目，国家预研基金(9140A08020110DZ02)重点实验室基金资助项目，中央高校基本科研业务费资助 |
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| 摘 要： | 在时分交替ADC结构中,由于各子通道ADC采样时钟的偏差,导致通道采样信号误差,严重影响时分交替ADC的动态性能.针对时分交替ADC中子通道的时钟偏差,在信号精确重构的理论依据下,采用基函数分段拟合和频域逼近的方式设计延时低通滤波器.通过改变基函数的定义域,推导了-Ts,0]内误差校正的理论基础,并结合基函数设计和频...
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| 关 键 词： | A/D转换器 数字滤波器 分数倍延时 基函数法 时钟误差校正 |
Design of Fragment Delay Interpolation Filter |
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| FAN Jianjun,LI Qiang,LI Guangjun.Design of Fragment Delay Interpolation Filter[J].Microelectronics,2011,41(2):215-218. |
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| Authors: | FAN Jianjun LI Qiang LI Guangjun |
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| Affiliation: | FAN Jianjun,LI Qiang,LI Guangjun(School of Communication and Information Engineering,Univ.of Electronic Science and Technology of China,Chengdu 611731,P.R.China) |
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| Abstract: | In high speed time-interleaved ADC,sampling timing error resulted from clock latency leads to distortion of output signal.This paper focuses on the calibration of timing error in sub-ADC.Based on the precise reconstruction theory,a base-function with frequency approximation method was used to design lowpass interpolation filter,which could deal with arbitrary fragment delay between -Ts,Ts].Derivation of re-sampling output for was presented,as well as analysis of characteristics of frequency approximation m... |
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| Keywords: | A/D converter Digital filter Fragment delay Base-function Timing error calibration |
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