浅海小目标MIMO探测技术研究

项目名称： 浅海小目标MIMO探测技术研究

项目编号： No.60872066

项目类型： 面上项目

立项/批准年度： 2009

项目学科： 金属学与金属工艺

项目作者： 潘翔

作者单位： 浙江大学

项目金额： 25万元

中文摘要： 在对收发分置MIMO和收发合置MIMO两种处理框架比较之后，重点对后者进行了理论分析、数值仿真和实验研究。获得以下成果： （1）设计了五种正交波形，其有效性在MIMO探测的数值模拟和波导水池实验中得到验证。 （2）针对浅海主动探测面临强混响问题，在分析混响统计特性之后，开发了了基于K分布的MIMO检测器，其性能较常规检测器有所提高。 （3）现有的常规MIMO处理方法局限于自由场环境，通过将MIMO处理模型与简正波传播模型相结合， 提出了适用于波导环境的MIMO探测处理框架。 （4）为了将MIMO处理研究成果向工程应用转化，提出了相控MIMO探测处理方法，在常规声纳和MIMO声纳之间架起一座桥梁。 （5）培养硕士研究生2名，发表为SCI和EI收录学术论文6篇，还有6篇在审稿之中，申请专利2项，出版以MIMO探测为研究内容的硕士论文2部。 （6）部分课题研究成果已转化为海军"十二五"装备预研项目的工程化应用研究，获得120万经费的支持。 此外，MIMO探测湖上实验研究正在千岛湖进行，相关的实验结果将在我们的后续论文中发表。

中文关键词： 相控MIMO；MIMO处理；小目标探测； 浅海；声纳

英文摘要： With comparison of the separated transmit/receive MIMO and the collocated receive/transmit MIMO, the project research focuses on the theoretical analysis, simulation and experiments of the latter. Some achievements are as follows. (1) Five orthogonal waveforms have been designed and their effectiveness has been verified in the numerical simulation and waveguide tank experiments of MIMO detection. (2) To resolve the problem of strong reverberation for active detection in shallow water, a K -distributed MIMO detector based on a statistic analysis of reverberation has been developed, which performs better than a conventional detector. (3) The conventional MIMO is limited to be used in a free- field environment. When the MIMO model is combined with a normal mode propagation model , a MIMO detection framework has been put forward to be suitable for a wave guide environment. (4) To apply some MIMO achievements to engineering application, a Phased-MIMO processing scheme has been proposed which is a bridge between conventional sonar and MIMO sonar. (5) Two graduate students have obtained a master's degree . Six papers have been published and indexed by SCI and EI. Other six papers are being reviewed. Two patents have been applied for. Two dissertations based on MIMO detection have been published. (6) Some of the research achievements have been applied to a research project in advance of the 12th Five -Year Plan of the Chinese Navy ,and we have received ￥ 1.2 million in funding. In addition, the MIMO detection experiment is being carried out in the Qiandaohu Lake, the experimental results will be presented in our future papers.

英文关键词： Phased- MIMO；MIMO processing； Detection of a samll target;Shallow ocean; Sonar