fig3_57_59_61

说明：  本程序实现了短数据序列不同窗函数的welch功率谱估计，然后又求了他们的平均标准差，从而判断各个窗函数的优劣。只要稍作修改就能实现不同信噪比下的功率估计，同时也可以实现长数据序列的估计。(This procedure has a short data series of different welch window function power spectrum estimation, and then seek their average standard deviation, and thus to determine the merits and demerits of each window function. As long as we can with some slight modifications under different signal to noise ratio power estimate, but also the realization of a long data sequence can be estimated.)

说明：  QPSK详细调制解调的源码，包括整个流程．(QPSK modulation and demodulation of the source in detail, including the entire process.)

利用Matlab及施工过程中采集的点云数据绘制剖面图(Point cloud data collected in the use the Matlab and construction process to draw a cross-sectional view)

本程序能实现任意阶的Zernike多项式的系数模拟和相位屏模拟。(This procedure can be of any order Zernike polynomial coefficient simulation and phase-screen simulation.)

一种基于图像训练的字典构造方法，可以用来进行压缩感知的基矩阵构造(Based on image training dictionary construction method can be used for compressed sensing-based matrix structure)

说明：  一个bp网络拟合非线性模型的例子，参考了李国勇书中的公式(A bp network nonlinear model fitting example, with reference to the book' s formula Li Guoyong)

matlab 图像处理中的 门限thresh的取定方法实例(Matlab image processing threshold thresh determined from the examples)

code modification new algorism moving average work in deed

matlab学习书籍，很有用的，大家可以根据这个自学！(matlab learning books, very useful, we can according to the self-study!)

雷达脉冲内调制特征的提取技术，用于雷达特征分析与信号分选。这是matlab程序。(Within the radar pulse modulation feature extraction technique for radar signature analysis and signal separation. This is a matlab program.)