基于回波的单路探测双波发射动态控制方法

Dynamical Control Strategy of Echo-based Dual-wave Signal Emission for Single-channel Detecting System

针对采用发射周期固定的单频体制的深弹水声引信对目标进行探测时,其抗干扰能力差的问题,借鉴蝙蝠回声定位信号的发射控制策略,提出了基于两次回波的单路超声探测的双波发射动态控制法,设计了多门控制信号。在有效的探测范围内,若连续两次收到回波信号,立即发调频脉冲信号;否则,继续发恒频脉冲信号,若两次收到回波信号的时间间隔小于最小探测周期,立即输出起爆信号。仿真表明,该方法控制简单、决策迅速,实现了快速发现、确认目标回波信号的能力,提高了系统抗干扰的能力。为引信目标探测器的定位、跟踪功能提供技术支持。

For fixed cycle constant wave acoustic fuze of underwater depth charge, interference happens during the detection. A dynamical dual-waves emission strategy based on the feedback of dual-echoes was proposed by bars echo-location emission strategy, and the corresponding multi-windows control signal was designed. Within the effective detection range, if two successive echoes been？ received, the frequency modulation pulse would be emitted; else the system would still emit the constant wave. If echoes＂ interval between two cycles was shorter than the minimum detecting cycle, detonator signal would be generated instantly. The simulation results showed that this method was simple and fast, facilitating the system to detect and identified target quickly and reliability with better anti interference performance.