基于弹道仿真的激光高重频干扰技术探讨

为了确定高重频干扰激光制导武器时激光干扰机所需要的重复频率,在已研制的激光制导武器弹道仿真系统的基础上进行了软件的二次开发,建立了激光导引头信号处理的数学模型,研制出了高重频干扰下的激光制导武器弹道仿真系统。以比例导引的激光制导炸弹为研究对象,进行了激光制导武器高重频干扰作战效果的仿真研究。研究表明为了得到最佳的干扰效果,要求高重频激光干扰机的重复频率不能与制导信号的重复频率成倍数关系。研究结果还表明使用一台高重频激光干扰机时,对于不同的波门宽度其最佳干扰频率是不一样的,因此一台高重频激光干扰机不能满足实战需要。为此研究了使用二台高重频激光干扰机干扰激光制导武器的作战效果。当重频频率达到某个值后,干扰成功概率和杀伤激光干扰机的概率都可以满足战术要求。

High-PPS laser jamming technology based on ballistic simulation

In order to determine the repeat frequency needed for a high-PPS laser jammer for jamming laser-guided weapons,we built up a mathematic model for laser seeker signal processing,and developed a ballistic simulation system for laser-guided weapons under high repeat-frequency jamming.Taking the proportional-navigated laser-guided bombs as the objective for study,we carried out simulations on operational effectiveness for laser-guided weapons under high-PPS jamming.The result showed that:1) To obtain optimum jamming effect,the repeat frequency of the laser jammer should not be a multiple of that of the guidance signal;and 2) The optimum jamming frequency of a highPPS laser jammer is different for different gate width,thus one laser jammer is not enough for practical combat.Therefore,we studied the operational effectiveness of two laser jammers for jamming the laser-guided weapons,and the result was: when the repeat frequency reaches a certain value,the successful jamming probability can satisfy the tactical requirement.