以单片机为中心的无线电引信炸高控制系统设计

针对连续波多卜勒无线电引信炸高散布大、抗干扰性差等问题,研究设计了一种单片机引信系统。采用相关比较法提取目标信息,采用相除对消原理消除影响炸高散布因素,采用数字滤波、设置虚警门限及近目标接电技术进行抗干扰。仿真试验证明该电路效果良好,并具有抗早炸、抗缓变信号和大脉冲突增信号干扰的能力。

APPLICATION FOR MICROCONTROLLER IN THE BURST- HEIGHT EXACT CONTROL OF RADIO FUZES

To the question of the bigger dispersion of burst height and the lower antijamming property in continuous wave Doppler radio fuzes, a microcontroller fuzes system is designed. The paper uses the interrelated comparative ways to extract target information, uses the division offset influence principle to reduce factors affecting the dispersion of burst height, and uses the tech-nique of digital filter, false alarm threhold close target to realize antijamming. A series of labo-ratory simulation tests have shown that the circuit possesses fine features in stabilization of the burst height, as well as abilities in antijamming from early burst, big pulse delayed signals and peak signals.