| 水下目标信号特性及其有效衰减系数分析 |
| |
| 引用本文： | 杜竹峰,黄铁侠,卢益民,杨宗凯.水下目标信号特性及其有效衰减系数分析[J].电子学报,2003,31(12):1815-1819. |
| |
| 作者姓名： | 杜竹峰 黄铁侠 卢益民 杨宗凯 |
| |
| 作者单位： | 1. 武汉邮电科学研究院系统部,湖北武汉 430074;2. 华中科技大学电子与信息工程系,湖北武汉 430074 |
| |
| 基金项目： | 国家自然科学基金 (No .699750 0 6) |
| |
| 摘 要： | 本文采用一种改进的Monte Carlo方法对水下目标信号进行了模拟.结果表明,除单次散射外,第二、三次散射对目标信号的作用最大.而对水下目标时的有效衰减系数Keff进行研究后发现,Keff与无水下目标的后向散射包络的有效衰减系数Kb是不相同的,即Keff≠Kb.并由不同参数条件下的模拟结果得出了它们之间的多个简单线性关系式.
|
| 关 键 词： | 水下目标信号 Monte Carlo方法 多次散射 有效衰减系数Keff 接收机视场角FOV |
| 文章编号： | 0372-2112(2003)12-1815-05 |
| 收稿时间： | 2002-10-28 |
Analysis of Underwater Target Signal and Its Effective Attenuation Coefficient |
| |
| DU Zhu feng ,HUANG Tie xia ,LU Yi min ,YANG Zong kai.Analysis of Underwater Target Signal and Its Effective Attenuation Coefficient[J].Acta Electronica Sinica,2003,31(12):1815-1819. |
| |
| Authors: | DU Zhu feng HUANG Tie xia LU Yi min YANG Zong kai |
| |
| Institution: | 1. Wuhan Research Institute of Posts and Telecommunications,SD,Wuhan,Hubei 430074,China;2. Dept of Electronics & Information,Huazhong University of Science & Technology,Wuhan,Hubei 430074,China |
| |
| Abstract: | A modified Monte Carlo method is used to simulate the returned signals of underwater target.The results show that the contributions of the second and third scattering to the received target signal are very great in addition to the single scattering.Moreover,a new opinion that the effective attenuation coefficient of the target signal ( K eff ) is larger than the attenuation coefficient of backscattering ( K b ) is proposed.The simple linear relationships between K eff and K b are set up based on various parameters. |
| |
| Keywords: | underwater target signal Monte Carlo method multiple scattering effective attenuation coefficient field of view of Lidar receiver |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电子学报》浏览原始摘要信息 |
| 点击此处可从《电子学报》下载免费的PDF全文 |
