| 虚拟迭代时间反转镜被动选择聚焦技术研究 |
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| 引用本文： | 生雪莉,罗方方,郭咏,郭龙祥.虚拟迭代时间反转镜被动选择聚焦技术研究[J].兵工学报,2010,31(3):322-326. |
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| 作者姓名： | 生雪莉 罗方方 郭咏 郭龙祥 |
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| 作者单位： | 哈尔滨工程大学,水声技术国防科技重点实验室,哈尔滨,150001;哈尔滨工程大学,水声技术国防科技重点实验室,哈尔滨,150001;哈尔滨工程大学,水声技术国防科技重点实验室,哈尔滨,150001;哈尔滨工程大学,水声技术国防科技重点实验室,哈尔滨,150001 |
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| 基金项目： | 水声技术国防科技重点实验室基金资助 |
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| 摘 要： | 克服水下多途干扰,在噪声背景中实现多目标被动定位是声纳信号处理的主要功能之一。本文提出了利用矢量阵的迭代时间反转镜被动选择聚焦方法。利用虚拟迭代时间反转镜(D ITRM)可综合多途信息,对信号进行时间、空间被动聚焦的同时,在信道输出总能量强的目标处实现选择性聚焦。声矢量水听器阵与D ITRM结合可提高算法的处理增益。对矢量阵D ITRM选择聚焦原理进行了理论分析,仿真结果表明了所提算法的正确性和工程适用性。
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| 关 键 词： | 声学 虚拟迭代 时间反转镜 声矢量传感器阵 |
Research on Selective Passive Focusing Technology Based on Dummy Iterative Time-reversal Mirror |
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| SHENG Xue-li,LUO Fang-fang,GUO Yong,GUO Long-xiang.Research on Selective Passive Focusing Technology Based on Dummy Iterative Time-reversal Mirror[J].Acta Armamentarii,2010,31(3):322-326. |
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| Authors: | SHENG Xue-li LUO Fang-fang GUO Yong GUO Long-xiang |
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| Affiliation: | (National Laboratory of Underwater Acoustic Technology, Harbin Engineering University, Harbin 150001, Heilongjiang, China) |
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| Abstract: | Passive multi-targets detecting in multipath and environmental noise conditions is one of the main functions for sonar signal processing.Passive selective focusing and locating method based on acoustic vector sensor array's iterative time-reversal mirror(TRM) technique was studied and dummy iterative time-reversal mirror(DITRM) was presented.The outputs of acoustic vector sensor array DITRM can refocus the incident acoustic field back on the origin of a probe signal regardless of the complexity of the mediu... |
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| Keywords: | acoustic dummy iterative time-reversal mirror acoustic vector sensors array |
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