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| 直扩信号PN码序列估计的神经网络方法 | |
| 引用本文： | 陆俊,陆思羽,刘万洪,陶业荣.直扩信号PN码序列估计的神经网络方法[J].无线电工程,2011,41(12):15-17. |
| 作者姓名： | 陆俊 陆思羽 刘万洪 陶业荣 |
| 作者单位： | 1. 国防科技大学电子科学与工程学院,湖南长沙410073／中国人民解放军63880部队,河南洛阳471003 2. 北京科技大学计算机与通信工程学院,北京,100083 3. 中国人民解放军63880部队,河南洛阳,471003 |
| 摘 要： | 为了解决通信侦察中低信噪比下直扩信号PN码序列的盲估计问题,分析了神经网络算法。该算法基于直扩通信的基带信号模型,通过对输入信号的主分量进行分析和提取,获取神经网络学习后的突触权值,进而估计出PN码序列。理论分析与仿真数值结果都表明,该算法在较低信噪比背景环境中,能够准确地恢复出PN码序列。 |
| 关 键 词： | 神经网络 直接序列扩频 突触权值 伪随机序列 |
Neural Networks Estimation Algorithm for PN Sequence of Direct Sequence Spread Spectrum Signals |
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| LU Jun,LU Si-yu,LIU Wan-hong,TAO Ye-rong.Neural Networks Estimation Algorithm for PN Sequence of Direct Sequence Spread Spectrum Signals[J].Radio Engineering of China,2011,41(12):15-17. | |
| Authors: | LU Jun LU Si-yu LIU Wan-hong TAO Ye-rong |
| Affiliation: | LU Jun1,2,LU Si-yu3,LIU Wan-hong2,TAO Ye-rong2(1.School of Electronic Science and Engineering,National University of Defense Technology,Changsha Hu'nan 410073,China,2.Unit 63880,PLA,Luoyang He'nan 471003,3.School of Computer and Communication Engineering,University of Science and Technology Beijing,Beijing 100083,China) |
| Abstract: | With focus on blind estimation algorithm for PN sequence of DS signals in communication reconnaissance at lower SNR,the neural networks algorithm is analyzed.Based on DS signal models,this algorithm uses principal component analysis and extraction of DS signals to get synaptic weights,and then estimates the PN sequence.Theoretical analysis and computer simulations show the algorithm has great efficiency. |
| Keywords: | neural networks direct sequence spread spectrum(DS) synaptic weights pseudo noise(PN)sequence |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |