a one demension sin wave demonstration, PML absorbed boundary a a a a a a a a a...

this report explains the phenomenon of ICI in ofdm

摄影测量的空间后方交会，采用迭代方法求解摄像机的6个外方位元素。严格按照摄影测量的后方交会计算流程进行编程。方便新学者和技术人员使用。(Photogrammetry space resection, using the iterative method for solving the camera s six elements of exterior orientation. In strict accordance with photogrammetric resection calculation process for programming. Facilitate new scholars and technicians.)

好用的随机森林回归（RFR），也可用与分类。基于以编译的mex84，可实现bias-correction。回归预测精度较高(applicable random forrest regression，can also be used for classification。Regress with bias-correction 。can achieve high accuracy)

说明：  压缩感知稀疏恢复的基本算法 OMP，便于理解可直接使用(OMP, the basic algorithm of compressed sensing sparse recovery, is easy to understand and can be used directly.)

OTSU Gray-level image segmentation using Otsu s method. Iseg = OTSU(I,n) computes a segmented image (Iseg) containing n classes by means of Otsu s n-thresholding method (Otsu N, A Threshold Selection Method from Gray-Level Histograms, IEEE Trans. Syst. Man Cybern. 9:62-66 1979). Thresholds are computed to maximize a separability criterion of the resultant classes in gray levels. OTSU(I) is equivalent to OTSU(I,2). By default, n=2 and the corresponding Iseg is therefore a binary image. The pixel values for Iseg are [0 1] if n=2, [0 0.5 1] if n=3, [0 0.333 0.666 1] if n=4, ... [Iseg,sep] = OTSU(I,n) returns the value (sep) of the separability criterion within the range [0 1]. Zero is obtained only with images having less than n gray level, whereas one (optimal value) is obtained only with n-valued images.

用matlab编写的图像融合工具箱，可以实现不同融合算法的比较。(Prepared by fusion with a matlab toolbox, allows comparison of different fusion algorithms.)

关于DSP方面的低通滤波器的设计的matlab程序。(On the DSP side of the low-pass filter design matlab program.)

程序实例，以简洁高效的代码来实现许多程序的功能，是初学者快速入门的经典教材。(procedures matlab examples, concise and efficient code to achieve a number of procedures and functions, are beginners QuickStart classic materials.)

说明：  计算循环卷积，DFT，IDFT,FFT... .. (Computing cyclic convolution, DFT, IDFT, FFT ... ..)

系统分析课程设计。倒立摆的空间状态控制。自己设置参数，(Systems Analysis Course Design. Inverted pendulum control space state. Set up their own parameters,)