基于地震动信号的目标预警系统

针对现代智能弹药系统低功耗的需求，提出一种基于地震动信号的低功耗预警系统电路。通过分析地震动波的特点，合理选择预警系统的地震动传感器；在自适应浮动门限与目标通过特性提取原理的基础上，设计低功耗硬件电路实现的震动预警系统；给出电路的系统结构组成框图和主要环节电路的工作原理。试验结果表明：该电路系统具有低功耗(＜5 mW)、低虚警(＜6 次/24 h)和目标的预警距离远(装甲目标350 m)等特点，并能够抗战场爆炸等冲击干扰。

Target Early Warning System Based on Seismic Signal

According to the requirement of low power consumption of modern intelligent ammunition system, a lowpower consumption early warning system circuit based on seismic signal is proposed. Through the analysis of thecharacteristics of the seismic wave, the seismic sensor of the early warning system is selected reasonably. Based on theprinciple of adaptive floating threshold and target passing characteristics extraction, a low power hardware circuit isdesigned to realize the seismic early warning system, and the system structure block diagram and the working principle ofthe main circuit are given. The test results show that the circuit system has the characteristics of low power consumption (<5 mW), low false alarm rate (< 6 times/24 h) and long early warning distance (armored target 350 m), and can resist theshock interference such as battlefield explosion.