| 基于Z域变换的CCM电荷传输模型研究 |
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| 引用本文： | 何伟基,陈钱,徐融,寇松峰. 基于Z域变换的CCM电荷传输模型研究[J]. 电子学报, 2008, 36(6): 1140-1143 |
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| 作者姓名： | 何伟基 陈钱 徐融 寇松峰 |
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| 作者单位： | 南京理工大学电子信息工程与光电技术学院,江苏南京,210094;南京理工大学电子信息工程与光电技术学院,江苏南京,210094;南京理工大学电子信息工程与光电技术学院,江苏南京,210094;南京理工大学电子信息工程与光电技术学院,江苏南京,210094 |
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| 基金项目： | 国防科技应用基础研究基金，武器装备预研基金 |
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| 摘 要： | 分析了EMCCD的结构特征及载流子倍增寄存器利用碰撞电离实现电荷倍增的原理,建立了一种基于离散系统Z域变换的CCM电荷传输模型.该模型描述了在CCM电荷传输的电荷转移损失和电荷倍增过程.利用该模型的电荷传输的传递函数,本文推导了CCM电荷传输幅频响应的计算表达式并结合CCM的典型参数进行了数值计算.计算结果与实验观察表明随着电荷倍增率越大,CCM电荷传输的幅频响应改善越明显.
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| 关 键 词： | Z域变换 CCM 电荷倍增 幅频响应 |
| 收稿时间： | 2007-08-13 |
Research on Model of Charge Delivering in CCM Based on Z Transform |
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| HE Wei-ji,CHEN Qian,XU Rong,KOU Song-feng. Research on Model of Charge Delivering in CCM Based on Z Transform[J]. Acta Electronica Sinica, 2008, 36(6): 1140-1143 |
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| Authors: | HE Wei-ji CHEN Qian XU Rong KOU Song-feng |
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| Affiliation: | HE Wei-ji,CHEN Qian,XU Rong,KOU Song-feng (School of Electronic Engineering , Optoelectronics Technology,Nanjing University of Science , Technology,Nanjing,Jiangsu 210094,China) |
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| Abstract: | A model describes both of charge lose and charge multiplication when charge delivering in CCM based on Z transform,which relates to the architecture of EMCCD and the theory of CCM that using impact ionization to multiply photo-generated charge was proposed here.From transfer function of charge delivering in CCM,the amplitude-frequency response was obtained as well as its numerical values with the typical parameters of a CCM.Numerical values and experimental results show that the higher the charge multiplica... |
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| Keywords: | CCM |
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