matlab-chapter5

matlab program is present in the file

说明：  脉冲响应不变法实现音频滤波功能，并且含有GUI界面设计，数字信号课程设计专用(Realization of audio filtering function with pulse response invariable method.)

计算多维正态分布的概率密度值，给出均值和方差矩阵(Multidimensional normal distribution calculate the probability density values, given the mean and covariance matrix)

说明：  matlab图像处理常用命令收集，很有用的，可以省很多时间(matlab image processing common command collection, very useful, can save a lot of time)

通过二维图抽象的DCT变换，取前n和系数进行重构得到的图像进行显示(Two-dimensional map by abstraction of DCT, take the first coefficient n and displays the image reconstructed by)

ENERGY DETECTION OF SIGNAL

说明：  在复杂网络研究中，利用e阈值求递归矩阵和邻接矩阵(get recurrence network)

Comparison of two survival curves can be done using a statistical hypothesis test called the log rank test. It is used to test the null hypothesis that there is no difference between the population survival curves (i.e. the probability of an event occurring at any time point is the same for each population).

matlab中求逆矩阵函数inv的c语言实现(Compute matrix inverse.)

UWB1000模块测试所得数据初步处理之后，已知锚点的坐标，可利用该文件里的程序解算标签三维位置。(After preliminary processing of data obtained from UWB1000 module test, the coordinates of anchor points are known, and the program in this file can be used to calculate the three-dimensional position of tags.)