| 激光雷达探潜背景信号的混沌和分形行为研究 |
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| 引用本文： | 何建华,杨宗凯.激光雷达探潜背景信号的混沌和分形行为研究[J].华中科技大学学报(自然科学版),1997(5). |
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| 作者姓名： | 何建华 杨宗凯 |
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| 作者单位： | 华中理工大学电子与信息工程系 |
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| 摘 要： | 研究了海洋激光雷达探潜弱信号的混沌及分形特性．在相空间重构的基础上，计算了探潜背景信号的吸引子维数以及最大李雅谱诺夫指数，并且用前馈网络验证了探潜信号的局部可预测性．实验结果表明，探潜背景信号有奇异吸引子，是由某个混沌系统产生的．对用盒维数探测探潜信号中目标的方法也进行了研究
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| 关 键 词： | 激光探潜 混沌 分形 |
On the Chaotic and Fractal Behavior of Background Signal during Submarine Detection with an Airborne Lidar |
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| He Jianhua Dept. of Electronics & Information Eng.,HUST,Wuhan ,China. Yang Zongkai.On the Chaotic and Fractal Behavior of Background Signal during Submarine Detection with an Airborne Lidar[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1997(5). |
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| Authors: | He Jianhua Dept of Electronics & Information Eng HUST Wuhan China Yang Zongkai |
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| Institution: | He Jianhua Dept. of Electronics & Information Eng.,HUST,Wuhan 430074,China. Yang Zongkai |
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| Abstract: | The chaotic and fractal behavior of the weak signal during submarine detection with an airborne oceanic lidar are investigated. The attractor dimension and the largest Lyapunov exponent of the submarine detected background signal is calculated based on the reconstruction of the phase space, and the local predictability of the background signal detected is examined with a feedforward network. Experimental results show that the background signal detected has a singular attractor brought about by a certain chaotic system. The method of detecting the target in the background signal using the box dimension is also studied. |
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| Keywords: | submarine detection by laser chaos fractal |
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