在惯性约束聚变(ICF)精确打靶中,对激光束变换、整形和控制要求苛刻,通过数字在线操控技术能够在线实现激光系统的自动校准。对数字在线操控的关键技术如非线性宽带传输、宽带放大和频率转换等模型及其算法进行详细分析。同时还对激光系统中不可或缺的辅助性技术开展了研究,具体包括基于傍轴光线追迹方程(PRTE)的光线追迹、光场的矢量衍射传输、基于迭代算法的相位恢复、光栅分析以及微纳米器件的时域有限差分(FDTD)分析等。在建模及算法分析过程中,给出了相应的模拟计算结果,并用来验证理论的正确性和算法的稳定性。 In inertial confinement fusion (ICF) precision targeting, the laser beam transformation, shaping and control are demanding and automated laser system calibration online with digital on-line control technology. The key technologies of digital online control such as nonlinear broadband transmission, broadband amplification and frequency conversion models and their algorithms are analyzed in detail. At the same time, the indispensable assistive technology in laser system is also studied, including ray tracing based on paraxial ray tracing equation (PRTE), vector diffraction transmission of light field, phase recovery based on iterative algorithm, grating analysis As well as time domain finite difference (FDTD) analysis of micro-nano devices. In modeling and algorithm analysis, the corresponding simulation results are given and used to verify the correctness of the theory and the stability of the algorithm.