一种激光半主动制导抗高重频干扰的改进方法

Improving method to counter high repetition jamming in laser semi-active guided systems

高重频激光干扰是半主动激光制导武器对抗中采用的一种有效的激光有源干扰技术。通过分析激光高重频有源干扰的机理,在已有的激光高重频对抗方法的基础上,针对现有对抗方法中高重频周期难以测量的问题,采用计数波门结合时刻记录方法,测量出多个高重频干扰信号的周期,并建立了激光抗高重频干扰的模型,经过LabVIEW仿真验证,该方法不仅能有效排除高重频干扰信号,同时又不影响制导信号质量。

High-repetition laser jamming is an effective laser active jamming to counter the laser semi-active guidance weapon. By analyzing the mechanism of the high-repetition laser active jamming and aiming at the difficulty in measur- ing the repetition cycle by the existing methods, a new way using counting gate with time recording is proposed. It can accurately measure the cycle of high repetition laser jamming signal. The model of countering high-repetition jamming is built. The simulation experiment shows that the high-repetition laser jamming signals can be eliminated effectively but the guidance signal is not affected.