optimization

利用MATLAB开发软件进行编程，实现了数字IIR低通滤波器的功能，程序直接可以运行！(Use MATLAB to develop software for programming, implementation of digital IIR low-pass filter function, the program can run directly!)

S函数的建立与应用，教你如何使用sfuction仿真( S function of the establishment and application, teach you how to use sfuction simulation)

说明：  经典的topsis方法，两个例子，实测能跑的通，有详细说明(The classic TOPSIS method, two examples, can run through the actual measurement, there is a detailed description)

用小波默认阈值法对散斑图进行去噪，还包括用相移法和最小二乘法求相位及去包裹(wavelet denoising used in speckle pattern)

录制自己的一段语音，时间控制在15秒到30秒左右；利用wavread函数对自己的语音进行采样，记住采样频率。 （1）画出原始语音信号的时域波形，而后以1秒为间隔，求出每秒数据的功率谱。 （2）根据语音信号特点，分别设计FIR及IIR滤波器，分别画出滤波器幅频和相频特性曲线。用设计的滤波器对信号滤波，画出滤波后时域波形。用sound函数回放语音信号。 （3）求出特征频段语音信号随时间变化的曲线（每间隔0.05秒求一次功率谱）。 (Record your own voice for some time (15 seconds to 30 seconds) use wavread function of the voice samples, remember the sampling frequency. (1) Draw the original speech signal in time domain waveform, and then to 1 second intervals, the data obtained power spectrum per second. (2) According to the voice signal characteristics, FIR and IIR filters were designed, namely to draw the amplitude and phase frequency characteristic curve. With the design of the filters on the signal filtering, to draw the filtered time-domain waveform. Playback with sound function of the speech signal. (3) Find the characteristic band speech signal curve over time (0.05 seconds intervals seeking a power spectrum.))

扩展卡尔曼滤波，预测目标无人机实时位置信息，掌握飞行动态(Extended Kalman filtering, real-time location information to predict a target drone, flight dynamics control)

matlab下logistic分叉图 (matlab下logistic分叉图)

小波变换的重建，通过matlab内的小波包函数实现(The reconstruction of the wavelet transform, wavelet packet is realized by Matlab function)

Matlab ------------------------------------------------------------------------- Function: [class,type]=dbscan(x,k,Eps) ------------------------------------------------------------------------- Aim: Clustering the data with Density-Based Scan Algorithm with Noise (DBSCAN) -------------------------------------------------------------------------

有关matla数组与运算的介绍，包括变量、幅值、矩阵、运算、字符串等(MATLAB array and operation)