| 强噪声背景下DS-SS信号检测技术 |
| |
| 引用本文： | 张伟,周劼. 强噪声背景下DS-SS信号检测技术[J]. 太赫兹科学与电子信息学报, 2007, 5(3): 235-240 |
| |
| 作者姓名： | 张伟 周劼 |
| |
| 作者单位： | 中国工程物理研究院,电子工程研究所,四川,绵阳,621900 |
| |
| 摘 要： | 针对如何使直接序列扩频（Direct Sequence-Spread Spectrum，DS-SS）信号检测方法适应更低的输入信噪比，详细分析了平方法、时域相关法、周期谱法和高阶累积量法等现有DS-SS信号检测方法的原理和各自的特点，并应用神经网络、混沌理论和随机振动理论进行微弱DS-SS信号检测的探索。研究表明，上述方法可以用来检测DS-SS信号。
|
| 关 键 词： | 直接序列扩频 微弱信号检测 信噪比 非线性 |
| 文章编号： | 1672-2892（2007）03-0235-06 |
| 修稿时间： | 2006-02-272007-03-19 |
Detection Techniques of DS-SS Signal Submerged in Heavy Noise |
| |
| ZHANG Wei,ZHOU Jie. Detection Techniques of DS-SS Signal Submerged in Heavy Noise[J]. Journal of Terahertz Science and Electronic Information Technology, 2007, 5(3): 235-240 |
| |
| Authors: | ZHANG Wei ZHOU Jie |
| |
| Affiliation: | Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang Sichuan 621900, China |
| |
| Abstract: | In this paper, the existing detection approaches of DS-SS signal are classified and summarized; the principle and their own specialties of the energy detection method, square double carrier frequency detection method, correlation of time domain method, cycle-spectrum method and high order cumulant detection method are analyzed in detail. For the purpose of these DS-SS signal detection methods serving the lower inputting SNR, preparatory work such as application of neural network theory, chaotic theory and stochastic vibration theory has been applied to detect the weak DS-SS signal. |
| |
| Keywords: | DS-SS weak signal detection signal to noise ratio non-linear |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《太赫兹科学与电子信息学报》浏览原始摘要信息 |
|
点击此处可从《太赫兹科学与电子信息学报》下载全文 |
