| 被动迭代时间反转镜研究 |
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| 引用本文： | 生雪莉,周伟,鲍习中,惠俊英.被动迭代时间反转镜研究[J].声学技术,2008,27(4):588-592. |
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| 作者姓名： | 生雪莉 周伟 鲍习中 惠俊英 |
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| 作者单位： | 哈尔滨工程大学水声工程学院,哈尔滨,150001 |
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| 基金项目： | 国家重点实验室基金，预研项目 |
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| 摘 要： | 抗除多途信道的干扰，优化被动检测性能是声纳信号处理关注的问题之一。通过仿真揭示了多途信道中单水听器时间反转镜的聚焦效应，研究了被动迭代时间反转镜技术，对其多目标定位选择性、多目标选择聚焦性能作了研究。结果表明利用了海洋信道的相干多途特性，被动时间反转镜可实现多个目标的空间匹配滤波：利用迭代算法，被动迭代时间反转镜可在抑制环境噪声干扰的同时，在信道输出总能量强的目标处实现选择性聚焦。
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| 关 键 词： | 时间反转 迭代算法 被动检测 |
| 收稿时间： | 2007/6/5 0:00:00 |
| 修稿时间： | 2007/8/8 0:00:00 |
Study on passive iterative time reversal mirror |
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| SHENG Xue-li,ZHOU Wei,BAO Xi-zhong and HUI Jun-ying.Study on passive iterative time reversal mirror[J].Technical Acoustics,2008,27(4):588-592. |
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| Authors: | SHENG Xue-li ZHOU Wei BAO Xi-zhong and HUI Jun-ying |
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| Affiliation: | (College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China) |
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| Abstract: | Optimizing detection performance of passive sonar is important in sonar signal processing. The focusing effect of the single time reversal mirror （TRM） in multi-path channels is proved by simulation and the technique of passive iterative TRM is studied. The selective focusing and locating of TRM are studied while multi-targets exist. The results show that the passive TRM can realize the multi-targets＇ space matched-filtering, and combined with iterative algorithm the passive iterative TRM can be focused on the most reflective target and weaken environment noise. |
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| Keywords: | time reversal mirror iterative algorithm passive detection |
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