摘要
指向性和基阵增益是评价水下基阵噪声抑制性能优劣的两个重要指标。为区别两个指标的物理意义,先阐述了两个指标的基本定义,然后以均匀线阵为例,通过Matlab数值仿真比较了两个指标的性能,分析了不同工作频率和环境噪声场特性对两个指标性能的影响。
Directivity and array gain are two important indicators which are used to assess noise suppression performance of underwater array. In order to distinguish the physical meaning of the two indicators,first the related basic definition is expounded,then based on uniform linear array model,the performance comparison about the two indicators is performed via Matlab numerical simulation. Meanwhile the effects of environmental noise field characteristic and different working frequency on the two performance indicators are analyzed.
作者
林开泉
杨博
吴开明
LIN Kai-quan1,YANG Bo1,2,WU Kai-ming1,2(1.Unit 91388, PLA, Zhanjiang Guangdong 524022, China; 2.National Key Laboratory of Science and Technology on Underwater Acoustic Antagonizing,Zhanjiang Guangdong 524022, Chin)
出处
《装备制造技术》
2018年第7期116-119,共4页
Equipment Manufacturing Technology
基金
国家自然科学基金项目(11774374)
关键词
指向性
基阵增益
环境噪声场
directivity
array gain
environmental noise field
