Mathematical model for torpedo guidance computation ought to be fast and accurate due to the limited hardware of guidance system and the fast attack process.Based on block element method,the target strengths of a submarine in different frequencies and azimuths are forecast precisely in this paper.Firstly,the curves of azimuth angle and target strength in single frequency are fitted by using the least squares method.Then,Lagrangian interpolation is applied to the curves taking frequency as the variable to obtain a fast fitting model of submarine target strength forecast result with variables of frequency and horizontal azimuth,which can meet the real-time computation for torpedo guidance system.Simulation results show that this method has higher computation speed and precision than existing equivalent scattering area formula and ellipsoid correction model.

在分析远程反舰导弹捕捉能力的基础上,针对海面风场、导弹射击方式、目标规避机动、目标定位精度、目标信息时间延迟对远程反舰导弹捕捉概率的影响进行了分析,并结合实例进行了仿真.