基于1 bit量化的超宽带同步技术研究

发布时间：2018-01-27 05:29

本文关键词： bit量化多路并行同步高斯信道瑞利信道信噪比　出处：《北京理工大学学报》2017年02期 　论文类型：期刊论文

【摘要】：为有效简化FPGA运算复杂度,降低FPGA处理时钟,在传统的滑动窗相关的基础上,结合1bit量化方法及多径能量积累的抗多径算法,提出了一种基于1bit量化的超宽带多路并行同步方法,在此基础上设计了FPGA实现方案.推导分析了1bit量化同步方法对系统性能的影响,给出了信噪比损失的量化结果.仿真结果表明,在低信噪比条件下,1bit量化方法引入2dB的信噪比损失.在高斯信道和瑞利信道下,通过针对虚警概率和漏检概率的分析及仿真,找到最优门限范围.
[Abstract]:In order to simplify the computational complexity of FPGA and reduce the clock of FPGA processing, based on the traditional sliding window correlation, combined with 1bit quantization method and multi-path energy accumulation anti-multipath algorithm. An UWB parallel synchronization method based on 1bit quantization is proposed. Based on this, a FPGA implementation scheme is designed, and the effect of 1bit quantization synchronization method on system performance is deduced and analyzed. The quantization results of SNR loss are given. The simulation results show that the SNR loss of 2dB is introduced in the 1-bit quantization method under the condition of low signal-to-noise ratio (SNR), and in Gao Si channel and Rayleigh channel. Through the analysis and simulation of false alarm probability and missed detection probability, the optimal threshold range is found.
【作者单位】：北京理工大学信息与电子学院;北京信息科技大学信息与通信工程学院;
【基金】：国家自然科学基金资助项目(61301089 61402044) 国家部委“八六三”计划项目(2015AA01A706) 北京市教委科研计划资助项目(KM201511232011) 北京市科技新星计划资助项目(Z161100004916086)
【分类号】：TN925
【正文快照】： 无线个域网(wireless personal area network,WPAN)是当前计算机网络发展最为迅速的领域之一[1],作为无线个域网的代表之一,超宽带(ultrawideband)技术以其传输速率高、低成本和低功耗等优点,受到人们的青睐.正交频分复用(orthogo-nal frequency division multiplexing,OFDM)

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