这个有中文注释，看得明白，比较了软阈值，硬阈值及当今各种阈值计算方法,基于小波变换的数字水印算法matlab代码。- The Chinese have a comment, understand it, Comparison of soft threshold and hard threshold and today various threshold calculation method, Based on wavelet transform digital watermarking algo

这个有中文注释，看得明白，这是第二能量熵的matlab代码，包括轨道机动仿真、初轨计算。- The Chinese have a comment, understand it, This is the second energy entropy matlab code, Including orbital maneuvering simulation, initial orbit calculation.

最优库存控制matlab代码，有中文注释，简单易懂。(Optimal inventory control matlab code, with Chinese notes, easy to understand.)