Based on the simple and effective modle of Raman fiber amplifier, Raman gains under different parameters are computed with the help of average power and shooting method. 摘要借助简化的拉曼光纤放大器数学模型，利用平均功率法和打靶法分别计算出了不同参数下多波长泵浦的拉曼增益。
In this paper, shooting methods based on an initial variable guess technique are proposed to solve the TPBVP, and the optimal landing trajectory is obtained. 本文利用一种基于初值猜测技术的打靶法求解这个两点边值问题，得到软着陆最优轨迹。
