作　　者： (郭淳）; (李锦明）; (高根伟）;

机构地区： 中北大学电子测试国家重点实验室、仪器科学与动态测试教育部重点买验室,太原030051

出　　处： 《电子器件》 2017年第4期987-993,共7页

摘　　要： 为提高火炮武器的命中精度和攻击效果,提出了一种基于无源声探测的目标定位技术。系统通过传声器阵列采集目标声源发出的声信号,采用多个基阵定向结果对目标进行交汇定位,搭建了基于FPGA+DSP架构的基阵节点,对节点的软硬件进行了详细设计,并利用时延估计和定位算法解算出目标声源的三维坐标,实现对炮弹炸点的精确定位。最后模拟现场环境,设计完成了多次测试实验,验证了方位角估计理论的正确性及试验系统的可行性。实验数据表明,该方法具有较高的估计精度,可获得炸点的具体位置信息,具有一定的实用价值和应用前景。 In order to improve the hit precision and the attack effect of artillery weapon, a burst of multi array sound source localization system is designed. Through the microphone array acquisition target sound source of acoustic signals by multiple array directional results of target intersection positioning, the FPGA＋DSP architecture is taken as the array node, which hardware and software are designed in detail, and the time delay estimation and localization algorithm solution of the 3D coordinates of the calculated target sound source is used to achieve precise positioning of shellburst. Finally, based on the simulation of the field environment and a number of tests, the correctness of the azimuth angle estimation theory and the feasibility of the test system have been verified. The results show that this method has high estimation accuracy, and can obtain accurate location information, which has a certain practical value and application prospect.

关 键 词： 无源声探测 声传感器 多基阵 炸点定位 时延估计