基于FPGA的激光引信信号处理单元设计

摘要

Multi-quadrant laser fuze system and working principle are analyzed. Field Programmable Gate Array(FPGA) features some characters, including small size, high integration of circuits and rich chip interfaces, which are helpful to realize the miniaturized design of signal processing circuits and complex algorithm design of fuze. According to software algorithm simulation and overall test, the signal processing circuits based on FPGA satisfy the real-time requirement of fuze. The signal processing procedure is given as well. The anti-interference algorithms toward the sunshine interference and cloud interference and target recognition algorithm can enhance the anti-interference ability of fuze.%分析了多象限激光引信系统的组成和工作原理.现场可编程门阵列(FPGA)具有体积小,集成度高和接口资源丰富的特点,有利于实现信号处理电路小型化设计和引信复杂算法设计.通过软件算法仿真和整机测试,基于 FPGA的信号处理电路满足引信实时性要求,并给出了信息处理流程.针对阳光和云雾干扰的抗干扰算法及目标识别算法提高了引信抗干扰能力.