| 直扩信号的谱检测和神经网络估计 |
| |
| 引用本文： | 张天骐,周正中.直扩信号的谱检测和神经网络估计[J].系统工程与电子技术,2001,23(12):12-15. |
| |
| 作者姓名： | 张天骐 周正中 |
| |
| 作者单位： | 电子科技大学通信学院140室, |
| |
| 摘 要： | 论述了二次谱理论、谱相关理论和神经网络方法在直接序列扩频(DS/SS)信号的检测与估计中的应用,提出了利用谱分析结合神经网络的方法来实现对低信噪比DS/SS信号的参数及其伪码(PN)序列的估计.计算机模拟结果表明,该方法在较低的输入信噪比条件下能良好地工作.
|
| 关 键 词： | 直接序列扩频信号 伪码序列 二次谱 谱相关 神经网络 |
| 文章编号： | 1001-506X(2001)12-0012-04 |
| 修稿时间： | 2000年11月17 |
Detection and Estimation of DS/SS Signals by Spectra Analysis and Neural Networks |
| |
| ZHANG Tian-qi,ZHOU Zheng-zhong.Detection and Estimation of DS/SS Signals by Spectra Analysis and Neural Networks[J].System Engineering and Electronics,2001,23(12):12-15. |
| |
| Authors: | ZHANG Tian-qi ZHOU Zheng-zhong |
| |
| Abstract: | We focus on the applications of spectra(spectrum-reprocessing and cyclic-spectrum) analysis and neural networks(NN) to detect and estimate the direct sequence spread spectrum(DS/SS) signals, proposing a method by utilizing spectra analysis and neural networks to realize the parameter detection of the lower signal to noise ratios(SNR) DS/SS signals and estimation of its pseudo noise(PN) sequence The computer simulations show that these methods can work well on the lower SNR input signals |
| |
| Keywords: | DS/SS signal PN sequence Spectrum-reprocessing Cyclic-spectrum Neural networks |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
