LMS自适应滤波器在激波报靶系统中的应用

The application by using adaptive filter by LMS in shock waves automatic target-reporting system

在野外复杂训练环境下,利用激波原理进行实弹射击的精度坐标报靶,是一项具有相当挑战性的技术。本文采用FPGA(现场可编程门阵列)结合自适应滤波技术,对报靶系统采集的激波信号进行了实时滤波处理。采用VHDL语言编程,利用QUARTUS II6.0进行了仿真。实验结果证明,当弹丸穿过靶平面时,数据采集电路采集的激波信号含有大量噪声,基于FPGA的自适应滤波器能很好地滤除了大部分干扰噪声,得到了比较理想的激波数据,提高了报靶系统的报靶精度。

it is a challenging technology that using the shock waves to calculate and indicate the high precision coordinates shotted by a gun in complicate training environment on ouside.This paper processed the shock wave gathered by target-reporting system,using FPGA and adaptive fliting technology.It can be programmed in VHDL and simulate by QUARTUS II6.0.The experiments have proved that the adaptive filter taken out much more noise ,acquired much better data of shock wave,improved precision of target-repoting system when the pill flies through the target.