multilevelinv_withblocks

系统辨识作业，仿真比较OE模型 ARMAX模型 和ARX模型的便是效果，内涵ppt。(System identification operation, the simulation model compared OE and ARX model ARMAX model is the effect, meaning ppt.)

用MATLAB 编写的图象纹理分析代码 (Prepared using MATLAB code image texture analysis)

名为k-means的MATLAB函数，实现k均值算法。输入矩阵X,w，输出最终估计值和聚类的标识数字。(Called the k-means of the MATLAB function, to achieve k means algorithm. Input matrix X, w, the output value of the final estimates and cluster identification number.)

使用matlab编写的crc循环码编译码仿真程序(Crc prepared using matlab simulation program coding and decoding of cyclic codes)

说明：  超宽带发射机的输出程序，利用函数的调用，其中有多个子程序(UWB transmitter output procedures, the use of function call, a number of subprogram)

频谱校正程序，matlab的，学完动态信号分析的作业，华南理工大学研究生课程(Spectrum correction procedures, matlab, completion of the job of the dynamic signal analyzer, South China University of Technology postgraduate courses)

optical CHARACTER RECOGNITION with important diagrams.

说明：  对mvdr算法进行MATLAB仿真，使期望信号方向增益为1，干扰方向约束为0，形成零陷，达到抗干扰的目的(MATLAB simulation of the mvdr algorithm, so that the direction of the desired signal gain of 1, by direction constraint is 0, the formation of nulls to achieve the purpose of interference)

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.))

matlab进行循环计算时，清除不必要的变量，保存需要的变量。(Matlab calculation for circulation, remove unnecessary variables, save need variables. )