基于最优回归理论的舰船辐射噪声指向性统计模型及分析方法研究

文章在已有单航次的舰船噪声空间特性建模分析方法等研究成果的基础上,进一步研究了若干航次条件下的统计建模及分析方法。该研究主要以单一部位垂向剖面的噪声指向性为例,建立了基于最优回归理论的舰船目标辐射噪声特性的统计模型及分析方法,并开展了海上实测研究,验证了该模型及分析方法的正确性和可行性。该项成果为深入分析不同航行工况下各类舰船目标的噪声空间特性及其统计规律等创造了条件。

Investigation on statistical model and analysis method for spatial directional distribution of vessel radiated noise based on optimization regression theory

In this paper, some sail statistical modeling and analyzing method for spatial distribution of ves-sel's underwater radiated noise are put forward in detail based on research fruits of single sail modeling and analyzing method born in past several years. Spatial directional distribution in single vertical section of vessel's hull, corresponding statistical model and analysis method are researched thoroughly and established by the numbers based on the Optimization Regression Analysis Theory. The verification study for aforemen-tioned model and method is carried out based on processing and analyzing data acquired on the sea. The statistical model and analysis method are very helpful to investigate and evaluate spatial characteristic and statistical rule of underwater radiated noise originated from various vessel targets under different steering state and tested circumstance condition.