超短基线阵在水雷目标探测与定位上的应用研究

【作者】 何轲；

【导师】 张效民；

【作者基本信息】 西北工业大学 ， 检测技术与自动化装置， 2004， 硕士

【摘要】 本论文主要研究将超短基线被动声定位理论实际的应用到水雷的被动目标探测与定位上。 论文从被动声定位的基本理论出发，根据水雷的具体外形特点，选取四元方阵作为研究对象。首先论述了现有超短基线被动声定位系统的基本理论，紧接着深入研究了几种典型的四元方阵的定位模型，通过性能对比、精度分析，讨论得出了最优的定位模型。 本论文采用广义互相关法作为时延估计方法，对现有的多种算法作了分析研究，并通过对比仿真得出了最优算法。 最后，论文重点论述了基于DSP的被动声定位硬件系统的设计与实现。包括整个系统的芯片选择、电路设计、硬件调试以及软件设计、算法实现，并验证了软硬件的正确性。更多还原

【Abstract】 The application of the ultra-short baseline theory to detect and localization of the mine is mainly researched in this dissertation.Based on the basic theory of the passive and the shape character of the mine, The four cell square lineup is choosed to be researched. Firstly , The basic theory of the ultra-short baseline system is dissertated. And then, several typical localization model of four cell lineup is analyzed and investigated thoroughly. A optimal localization model is educed by contrasting performance and analyzing precision.The generalized correlation method is choosed as the method of time delay estimation in this dissertation. And a optimal arithmetic is educed by analyzing and contrasting many arithmetics at present.At last but not the least, the software and the hardware of the passive acoustic localization DSP system is dissertated emphatically, including the choice of chip, design of the circuit debugging of the hardware, design of the software and the realization of arithmetic. And validate the correctness of the software and the hardware.更多还原