qpsk_raise_cosine1

说明：  精通matlab一书的一些经典章节，是本好书，分享一下(Proficient in matlab some of the classic chapters of the book is a good book to share what)

这是一个PCA的练习题，即主成分分析，用于数据将维，将高维大数据降为低维数据。是一种高效率的数据处理方法。(This is a PCA exercises, namely principal component analysis for data-dimensional, high-dimensional data is reduced to a large low-dimensional data. Is a highly efficient method of data processing.)

自己做的： （一）用双线性变换法设计并用实验系统实现一个三阶的契比雪夫Ⅰ型低通数字滤波器，其采样频率Fs =8KHz，1DB通带边界频率为fp=2KHz。 （二）用双线性变换法设计并用实验系统实现一个三阶的契比雪夫Ⅱ型高通数字滤波器，其采样频率Fs =16KHz，阻带边界频率为fst =4KHz(matlab gui)

实现DBF运算的具体的仿真程序，可帮助新人参考 (the simulated program to implement DBF )

dynamic d flipflop hspice model

一种改进的基于模拟退火的粒子群算法(SimPSO)。将模拟退火算法的思想引入粒子群算法中,并对更新公式进行优化(An improved particle swarm optimization algorithm based on simulated annealing (SimPSO). The simulated annealing algorithm is introduced into the particle swarm optimization algorithm, and the updating formula is optimized.)

读取wavepro7100的2进制文件头参数 返回4个参数：采样长度，增益，偏移量，时间间隔 ylj 2005.6.9(2 M wavepro7100 read file header parameters The return of four parameters: the sampling length, gain, offset, time interval)

matlab工具箱函数汇总:统计工具箱,优化工具箱,样条工具箱,偏微分方程数值解工具箱(matlab toolbox function summary: Statistics Toolbox, Optimization Toolbox, Spline Toolbox, the numerical solution of partial differential equations Toolbox)

圆形天线阵列MUSIC算法的matlab实现，有详细注释(Circular antenna array MUSIC algorithm matlab realize, there are detailed notes)

说明：  输入一个数判定能否开平方，能就开平方，不能就退出(Enter a few decide whether to open the square, to the open square, can not quit)