rgb2lab

说明：  truss deflection analysis

这是一个三次样条插值的.m程序 输入的是一个二维数组A(Nx2) 插值方法为: S(x) = A(J) + B(J)*( x - x(J) ) + C(J)*( x - x(J) )**2 +D(J) * ( x - x(J) )**3 for x(J) <= x < x(J + 1) (This is a cubic spline interpolation. M program input is a two-dimensional array A (Nx2) interpolation method: S (x) = A (J)+ B (J)* (x- x (J ))+ C (J)* (x- x (J))** 2+ D (J)* (x- x (J))** 3 for x (J) )

说明：  用matlab编写的计算机图形学中的画线算法。包括几种经典的画线算法，如中点画线等。(Prepared using matlab draw line in computer graphics algorithms. Includes several classic line drawing algorithm, such as the dotted lines.)

自己写的一个关于非零频的LFM信号的产生，及下混频到零频的代码，有详细的注释(A non-zero frequency LFM signal generation, and under the mixer to the zero-frequency code, with detailed comments)

matlab 的拟牛顿方法，减少计算导数带来的计算量的一种迭代方法，用来计算非线性问题。(matlab quasi-Newton methods to reduce the computational calculation of the amount of the derivative of an iterative method to calculate the nonlinear problem.)

压缩文件里有TCL语言教程，可为初学opensees软件的学者提供资料。 另外有四个文档分别为matlab实例教程、有限元源程序(Compressed file with TCL language tutorials, can provide information for beginners opensees software of scholars. In addition, there are four documents respectively for instance tutorial matlab source, the finite element program)

数字图像处理,人脸识别,matlab实现程序(Digital image processing matlab achieve recognition program)

直流微网继电保护策略实现S-function的M文件，主保护为母线直流差动保护，基于小波分解的高频故障电流保护，后备保护为过电流保护，针对系统为2进2出的微网，只需将电流值输入，其中第一个输入变量为开关，为保护算法控制开始/关闭。(The relay protection strategy of DC microgrid realizes the M file of S-function. The main protection is busbar DC differential protection. The high frequency fault current protection based on wavelet decomposition and the backup protection is overcurrent protection. For the microgrid with 2 in and 2 out of the system, only the current value is input. The first input variable is switch, which starts/closes for the control of the protection algorithm.)

OFDM transmitter for DVB-T. Credit to Guillermo Acosta.

用增广最小二乘法进行单输入单输出系统的参数辨识，输入采用幅度为1的4阶伪随机序列(Extended least squares method parameters identification of single-input single-output system, enter using the amplitude of a 4-order pseudo-random sequence)