摘要
提出了一种度量不确定海洋环境中被动声纳作用距离的计算方法,推导了当海洋环境中存在单个和多个不确定参数时被动声纳作用距离与不确定参数之间的关系,继而获得被动声纳作用距离的概率分布,以极大似然准则确定此时被动声纳的作用距离。针对海洋环境存在单个和多个不确定参数时的情形,计算了被动声纳的作用距离。该方法充分利用不确定海洋环境参数的概率密度信息,对不确定海洋环境参数的概率分布不做特定要求,且无需设定用以估计作用距离的门限。
A method is proposed for measuring the detection range of passive sonar in uncertain ocean en- vironments. The relationship between the detection range of passive sonar and the uncertain parameters of ocean environment are inferred when there are single and multiple uncertain parameters in the ocean envi- ronment, the probability distribution functions of detection range of passive sonar are obtained, and then the detection ranges of passive sonar in ocean environment are determined based on the maximum likeli- hood criterion. For the cases of the single and multiple uncertain parameters of ocean environment, the detection ranges of passive sonar are calculated. The proposed method makes full use of information of PDF of the uncertain environmental parameters, and needs not to specify the type of PDF of ocean envi- ronmental parameters and set any threshold for determining the detection range as well.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2014年第1期140-144,共5页
Acta Armamentarii
基金
国家自然科学基金项目(51009146)
关键词
声学
被动声纳
作用距离
不确定海洋环境
传播损失
极大似然准则
acoustics
passive sonar
detection range
uncertain ocean environment
transmission loss
maximum likelihood criterion
