| 水下目标低频散射特性的波叠加解法 |
| |
| 引用本文： | 程广利,张明敏.水下目标低频散射特性的波叠加解法[J].武汉理工大学学报(交通科学与工程版),2010,34(2):250-253. |
| |
| 作者姓名： | 程广利 张明敏 |
| |
| 作者单位： | 海军工程大学电子工程系,武汉,430033 |
| |
| 基金项目： | 海军工程大学自然科学基金项目资助(批准号:HGDJJ022) |
| |
| 摘 要： | 针对运用边界积分方程法研究低频散射特性时,存在的表面奇异积分和特征频率处解的非惟一性等问题,将波叠加法引入到水下目标低频散射研究中.对刚性球体的低频散射计算表明,该方法较边界积分方程法不仅消除了奇异解和多值问题,而且具有更高的计算速度和精度,适用的频率范围更宽,可用于水下目标低频散射问题的研究.分析表明影响其计算精度的因素主要是虚源空间位置、目标表面与虚源表面划分精细程度.
|
| 关 键 词： | 波叠加法 低频散射 虚源强度 |
Wave Superposition Method for Low-frequency Scattering Characteristics of Submerged Objects |
| |
| Cheng Guangli,Zhang Mingmin.Wave Superposition Method for Low-frequency Scattering Characteristics of Submerged Objects[J].journal of wuhan university of technology(transportation science&engineering),2010,34(2):250-253. |
| |
| Authors: | Cheng Guangli Zhang Mingmin |
| |
| Institution: | Department of Electronic Engineering/a>;Naval Univ.of Engineering/a>;Wuhan 430033/a>;China |
| |
| Abstract: | For resolving the problems of surface singular integral and nonunique solutions at eigenfrequencies that arise in the boundary integral equation method(BIEM),wave superposition method(WSM) is introduced to study low-frequency scattering characteristics of submerged objects.Computation results for a rigid sphere at low frequencies demonstrate that WSM overcomes the deficiencies of BIEM and can be used to study low-frequency scattering characteristics of submerged objects with rapider calculation speed,higher... |
| |
| Keywords: | wave superposition method low-frequency scattering fictitious source strength |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
