【摘要】 无源声测定向是声学监视技术的重要研究内容。为了实现对低空运动目标的声学监视,提出了一种小基阵定向方法,并用线性回归分析原理导出了定向算法,对定向误差进行了理论分析和数值仿真。不仅适用于随机布阵的三维小基阵情况,也可应用到二维小基阵对声源的定向。理论分析和仿真表明,这种定向算法正确可行,且有较大的实用价值。更多还原

【Abstract】 Passive acoustic bearing estimation is an important aspect in the acoustic surveillance.In order to realize the surveillance to the source flying in the air,the method of acoustic passive bearing estimation with a small random solid array is presented in the paper.Using the linear regression analysis the algorithm of acoustic passive bearing estimation is derived.It is also studied the errors of the method by theoretic analysis and simulation.The method can be used to estimate the bearing not only in the solid array but also in the planar array.By theoretic analysis and simulation,it shows that the method is feasible,and could be used in the practice.更多还原