| 基于训练序列的峰值检测超宽带接收机的动态门限控制 |
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| 作者姓名： | 王燕燕 白雪飞 黄鲁 刘勇 |
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| 作者单位： | 中国科学技术大学电子科学与技术系集成电路实验室, 合肥 230027 |
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| 基金项目： | 国家科技重大专项(2011ZX03004-002-01)资助 |
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| 摘 要： | 针对峰值检测超宽带接收机,利用高斯信道下其系统误比特率是关于比较器门限的凸函数的特点,提出一种基于训练序列的动态门限控制算法.理论分析和数值仿真表明,动态门限控制算法不仅实现复杂度低,而且能够动态跟踪和快速逼近最优的比较器门限,以获得最小的系统误比特率.
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| 关 键 词： | 峰值检测 超宽带 凸函数 训练序列 动态门限控制 |
| 收稿时间： | 2012-03-09 |
| 修稿时间： | 2012-03-28 |
Dynamic threshold control for peak detection of UWB receiver based on training sequence |
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| Authors: | WANG Yan-Yan BAI Xue-Fei HUANG Lu LIU Yong |
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| Institution: | Dept. Electronic Science & Technology, IC Lab, University of Sciences & Technolgy of China, Hefei 230027, China |
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| Abstract: | The performance of peak detection of ultra-wide band receiver is greatly affected by the threshold of the comparator. Considering that the bit error rate is a convex function of the threshold, we propose a dynamic threshold control based on training sequence. The simulation results show that the proposed practical algorithm can track and approach the optimal comparator threshold to achieve better reception performance. |
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| Keywords: | peak detection ultra-wide band convex training sequence dynamic threshold control |
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