一种多基阵炸点声源定位系统设计

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。

Research and design of multi array sound source localization system

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, takes the FPGA + DSP architecture as the array node, which hardware and software are designed in detail, and the use of time delay estimation and localization algorithm solution of the 3D coordinates of the calculated target sound source, 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.