jujiao20111209mm

串的一些基本运算，删除一段子串，置换，求s串中从start位置开始长度为len的子串等等(Some of the basic string operations, delete a substring, replacement, seeking s string starting from the start position of the sub-string of length len, etc.)

IP175A circuit application

先进PID多变两解耦控制的matlab仿真程序源码(Advanced PID decoupling control of the two variable matlab simulation program source)

说明：  用runge-kutta 法解常微分其中有实例，可以用于验证(Using runge-kutta method for solving ordinary differential examples of which can be used to verify)

RGB color graph for matlab color codes. Very useful

说明：  光谱数据预处理之小波去噪，包含两个数据文件(Wavelet denoising for spectral data preprocessing)

this code invert number of a vector

1求矩阵中的 最大值 并返回所在的行数与列数。2判断一组数据满足什么分布，包括泊松分布、正态分布、卡方分布、T分布等。3 检验线性方程组 系数的输入是否有误。(1 find the maximum value and returns the matrix where the rows and columns. 2 to determine what set of data to meet the distribution, including Poisson, normal, chi-square distribution, T distribution. 3 Coefficient of linear equations test input is wrong.)

级联积分－梳状(Cascaded Integrator–Comb，CIC)滤波器，是种高 效滤波器。它是一种线形相位FIR滤波器，由工作在高抽样率的级联理 想积分器和低抽样率的级联微分器组成,根据抗混叠和抗镜像的指标 确定所需的级联数目。 (Cascaded integrator- comb (Cascaded Integrator-Comb, CIC) filter, is the kind of high efficiency filter. It is a linear phase FIR filter, high sampling rate by the work in the cascade of an ideal integrator and a low sampling rate of the cascade differentiator formed, according to anti-aliasing and anti-mirror of the indicators to determine the number of required cascade.)

16QAM调制和16psk调制的眼图程序(Modulation and 16QAM modulation eye procedures 16psk)