基于时延的被动声探测阵列综合仿真比较  

Comparison Among the Simulations of the Synthetic Capability of Arrays for Passive Acoustic Detection Based on Time-delay Estimation Method

作　　者：李喆[1] 陈文聪[1] 李杰[1] 

机构地区：[1]北京理工大学机电工程学院,北京100081

出　　处：《探测与控制学报》2004年第1期57-60,共4页Journal of Detection & Control

摘　　要：智能雷弹通过对空中目标噪声信号的探测处理来得到目标方位,传声器阵列是雷弹声探测的工具,它的形式直接影响到定位的算法和精度。现有的阵形主要为平面四元阵、立体四元阵和立体五元阵,文中在分析了影响定位精度的几种因素后,在综合考虑误差影响的情况下对阵形进行了仿真对比,结果表明立体阵相比平面阵在俯仰角估计精度上有较大提高,受安装和有效风速影响小,性能优于平面阵。The smart mine can detect and localize the targets in the air by sensing and processing the noise of them. The sensor array is the tool that the smart mine uses to sense the sound. Its structure plays a key role in the localization algorithm and precision. Now there are three mainly used array structures: four-element planar array, four-element tridimensional array and five-element tridimensional array. After the analysis of the errors that affect the localization precision, this paper puts forward a comparison of the simulations of the capability of the three arrays considering the errors synthetically. The result shows that there is an improvement in the precision of pitch angle estimation when choosing the tridimensional array not the planar array. The tridimension array also shows better performance when detection is affected by wind and setting error than planar array. It have better capability than planar array.

关 键 词：被动声探测 声定位 传感器阵列 时延估计 

分 类 号：TN911.72[电子电信—通信与信息系统]