| 混沌海杂波背景下的弱信号检测 |
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| 引用本文： | 杜鹏飞,王永良,孙文峰. 混沌海杂波背景下的弱信号检测[J]. 系统工程与电子技术, 2002, 24(7): 65-67 |
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| 作者姓名： | 杜鹏飞 王永良 孙文峰 |
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| 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
2. 空军雷达学院重点实验室,湖北,武汉,430010 |
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| 基金项目： | 全国高等学校优秀青年教师教学科研奖励计划资助课题 |
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| 摘 要： | 讨论了海杂波背景下的弱信号检测问题。经典的统计检测理论把海杂波作为随机信号处理的做法大大降低了信号检测的性能。利用海杂波为混沌信号这一先验知识 ,采用神经网络相空间重构的方法 ,对淹没在混沌背景下的弱信号进行检测处理 ,同时针对模型误差及不同信号形式就这一问题进行了全面分析。理论分析和仿真结果表明 ,此方法能有效地实现混沌海杂波背景下的弱目标检测 ,具有很高的改善因子。
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| 关 键 词： | 混沌信号 神经网络 信号检测 |
| 文章编号： | 1001-506X(2002)07-0065-03 |
| 修稿时间： | 2001-07-06 |
Weak Signal Detection in the Background of Chaotic Sea Clutter |
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| DU Peng-fei+,WANG Yong-liang+,SUN Wen-feng+. Weak Signal Detection in the Background of Chaotic Sea Clutter[J]. System Engineering and Electronics, 2002, 24(7): 65-67 |
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| Authors: | DU Peng-fei+ WANG Yong-liang+ SUN Wen-feng+ |
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| Affiliation: | DU Peng-fei+1,WANG Yong-liang+2,SUN Wen-feng+2 |
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| Abstract: | This paper discusses the detection problem of the weak signal submerged in the background of sea clutter.The classical statistical detection theory taking sea clutter signal as stochastic signal, greatly reduces the capability of signal detection. In this paper,the prior information that the sea clutter is in fact chaotic is exploited. The weak signal submerged in the background of chaos is detected by using neural network's method to restruct phase space. The model error and different signal forms are also considered.The results show that this method can detect the weak signal in the background of chaos effectively.And high improvement factor is obtained. |
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| Keywords: | Chaotic signal Neural network Signal detection |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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