PID

压缩包里有OFDM信号的分析，频谱，星座图，加窗(Compression bag with OFDM signal analysis, spectrum, constellation, plus window)

用数字图像处理的方法进行高速公路车流量的统计，在matlab平台上用的事背景差法。(Highway traffic volume statistics, the in matlab platform with the things background subtraction method of digital image processing.)

implement node in network

AOA——toa角度估计算法仿真，基于MUSIC的(AOA-toa angle estimation algorithm simulation, based on MUSIC)

Semi-supervised learning

通过恢复低秩矩阵得到显著性图，其中详细的运用了mean-shift算法，可以很好的了解mean-shift算法的使用，同时还包含了RPCA算法。(Significantly through the recovery of low rank matrix diagram, which detailed the use of mean-shift algorithm, can be a very good understanding of the use of the mean-shift algorithm, also contains RPCA algorithm.)

统计一段文字中单词的数目，程序可运行，效果正确(The number of words in a text statistics, the program can be run, the effect is correct)

codigos sacar ecuacione ewton

Base class for file system resource items (Folders, Files).

航天器的飞行动力学计算，航空航天参数分析(Spacecraft flight dynamics calculations，Aerospace parametric analysis )