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| 应用于UHF RFID标签的低功耗真随机数发生器 | |
| 引用本文： | 李蕾,毛陆虹,黄晓综,陈力颖.应用于UHF RFID标签的低功耗真随机数发生器[J].电路与系统学报,2010,15(4). |
| 作者姓名： | 李蕾 毛陆虹 黄晓综 陈力颖 |
| 作者单位： | 1. 天津大学,电子信息工程学院,天津,300072;辽宁工程技术大学,电子与信息工程学院,辽宁,葫芦岛,125105 2. 天津大学,电子信息工程学院,天津,300072 3. 南开大学,微电子学研究所,天津,300457 |
| 摘 要： | 设计了一种基于振荡采样法的真随机数发生器.针对UHF RFID标签芯片功耗低、面积小的特点,利用简单有效的电路结构增强发生器的随机性.采用频率受控的被采样数据振荡器与采样时钟异或后形成初步随机数,并增加异或链输出负反馈结构,有效提高了输出序列中"0""1"分布的均匀性,降低了序列的自相关性.标签采用SMIC 0.18μm RF CMOS工艺设计并流片,采样时钟为2MHz,总工作电流少于2μA. |
| 关 键 词： | RFID标签 真随机数发生器 异或链 相关系数 |
Design of a low power true random number generator in UHF RFID tag chip |
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| LI Lei,MAO Lu-hong,HUANG Xiao-zong,CHEN Li-ying.Design of a low power true random number generator in UHF RFID tag chip[J].Journal of Circuits and Systems,2010,15(4). | |
| Authors: | LI Lei MAO Lu-hong HUANG Xiao-zong CHEN Li-ying |
| Affiliation: | LI Lei1,2,MAO Lu-hong1,HUANG Xiao-zong1,CHEN Li-ying3(1.School of Electronic , Information Engineering,Tianjin University,Tianjin 300072,China,2.School of Electronic , Information Engineering,Liaoning Technical University,Huludao 125105,3.Institute of Microelectronics,Nankai University,Tianjin 300457,China) |
| Abstract: | A true random number generator using oscillator sampling technique is designed.For low power dissipation and small chip area,a sampled data oscillator architecture with tunable output frequency is utilized to generate preliminary random numbers,and a XOR chain with a negative feedback is used,which generates uniform distribution of the output bits and decreases the self-correlation simultaneously.The generator is designed in SMIC 0.18um RF CMOS process.The sampling clock is 2MHz and the whole working curren... |
| Keywords: | RFID tag true random number generator XOR chain correlation coefficient |
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