| 一种基于线阵的舰船辐射噪声空间分布特性分析方法 |
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| 引用本文： | 罗雪峰,张明之.一种基于线阵的舰船辐射噪声空间分布特性分析方法[J].舰船科学技术,2009,31(7):82-84,132. |
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| 作者姓名： | 罗雪峰 张明之 |
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| 作者单位： | 水下测控技术国防科技重点实验室,辽宁,大连,116013 |
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| 摘 要： | 传统的舰船辐射噪声空间分布特性是用单水听器法分析获得的.由于单水听器是无指向性的,无法满足舰船辐射噪声向低噪声发展的测试需求.本文采用恒定束宽波束形成技术,分析处理基阵获取的舰船辐射噪声数据,提高了输出信噪比,克服了经典宽带波束形成技术的数据失真问题,并得到舰船辐射噪声的空间分布特性.
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| 关 键 词： | 辐射噪声 空间分布特性 波束形成 恒定束宽 |
An analyzing method based on line hydrophone array for the space distributing character of warship's radiated noise |
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| LUO Xue-feng,ZHANG Ming-zhi.An analyzing method based on line hydrophone array for the space distributing character of warship''s radiated noise[J].Ship Science and Technology,2009,31(7):82-84,132. |
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| Authors: | LUO Xue-feng ZHANG Ming-zhi |
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| Institution: | Key Laboratory of Underwater Observing and Control Technology;Dalian 116013;China |
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| Abstract: | The conventional analyzing method for space distributing character of warship's radiated noise is based on single-hydrophone.This method can't satisfy the testing demand that the radiated noise of the warship develop lower and lower,because single-hydrophone is omnidirectional.This article use constant beam-width beamforming technique to analyze the data of warship's radiated noise obtained by line hydrophone array and get the space distributing character.The result indicate that the output signal-to-noise ... |
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| Keywords: | radiated noise space distributing character beamforming constant beam-width |
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