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An analysis model and data-processing method on spatial characteristics of underwater radiated noise of vessel targets

机译:一种分析模型与数据处理方法对血管目标水下辐射噪声的空间特性

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This paper mainly focuses on measuring and analyzing planar directional characteristics of underwater radiated noise originated from vessel targets in the lengthways section. A corresponding mathematic model is presented based on linear array measurements. Combined with cubic spline interpolation algorithm, a data processing and analysis method is brought up regarding sound pressure spatial distribution and directivity in a single plane. The effectiveness of the mathematic model and data-processing method is further verified based on processing and analyzing sea experiment data. The proposed method is simple, practical and reliable. And the analysis results can be further applied in the studies on noise source analysis, identification and far-field feature extrapolation for underwater radiated noise.
机译:本文主要侧重于测量和分析源自纵向截面血管靶标的水下辐射噪声的平面方向特性。基于线性阵列测量来提出相应的数学模型。结合立方样条插值算法,在单个平面中的声压空间分布和方向性提出了一种数据处理和分析方法。基于处理和分析海上实验数据,进一步验证了数学模型和数据处理方法的有效性。所提出的方法简单,实用可靠。分析结果可以进一步应用于关于水下辐射噪声的噪声源分析,识别和远场特征外推的研究。

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