fitellipse

LDPC decoder simulation experiment Simulation, this a process using simulink, simulation diagram as shown in the diagram

求去噪之后信号的信噪比，发给大家共同探讨(For denoising the signal to noise ratio after the signal, issued to everyone to explore)

说明：  SPI 函数模块，用于读取，非常好用，适用于初学者。(SPI function module to read, very easy to use, suitable for beginners.)

说明：  讲kalman滤波及其matlab应用的书 经典 详尽(kalman filtering using matlab)

matlab软件优化设计算法 黄金 最速 梯度法(matlab soft)

用MATLAB程序软件完成Z-N法对控制器的参数整定，实现P,PI,PID控制器的分别参数整定，并求出控制器的控制参数Kp，Ti，Td。最后绘制出不同控制器控制下的及参数整定前后的单位阶跃响应图进行比较。(MATLAB program software is used to complete the parameter tuning of the controller by Z-N method. The parameters of P, PI, PID controller are adjusted, and the control parameters of the controller Kp, Ti, Td are obtained. Finally, the unit step response diagram before and after parameter tuning is plotted under different controller control.)

镜像延拓和一种自适应波形匹配法处理EMD中的端点效应。boundary_matchwave。BOUNDARY_CONDITIONS_EMD。(Mirror extension and an adaptive waveform matching method to deal with the end effect in EMD.)

遗传算法中二十个非常经典的原代码，可以直接运行。(ga optimization－20 examples。I can be useful to the new learner of Ga mutiobject optimization. )

对录音信号集 中的某一语音，利用BATLAB设计一美尔例谱算法，并实现。 取信号集 中的一个语音信号：“xxxxxx”，将它作为输入的语音信号来为设计一个美尔倒谱算法，在该算法中，主要设计了以下环节： 1.读入一个语音信号；2.对这个信号归一化；3.对归一化的信号进行加窗处理（这里的矩形窗长度必须为257，重帧长64）；4.进行预加重处理，即通过一个高通滤波器： ；5进行512点的FFT；6.分别取模平方得到功率谱；7.在设计的mel滤波器组中，我采用了25个带通滤波器；8.将得到的功率谱信号通过mel滤波器组，得到相应的25个功率值；9.对这些功率值取自然对数；10.对这些值取离散作弦变换；11.将得到的值去掉直流分量，取其它值作为MFCC参数。 (Concentrated on recording a voice signal, using BATLAB designed Mayer cases spectral algorithm, and implementation. Get a voice signal signal focus: "xxxxxx", will it as input for the design of a voice signal to Mel Cepstrum algorithm in the algorithm, the main design of the following links: 1. Read a speech signal 2. On the signal normalized 3. Of the normalized windowed signal processing (here, rectangular window length must be 257, re-frame size 64) 4. For Pre-emphasis processing through a high-pass filter: 5 for 512 points of FFT 6. modulo square were obtained spectrum 7. in the design of mel filter banks, I use a 25 band-pass filter 8 . will be the power spectrum signal by mel filter bank, corresponding to the 25 power values 9. on the power to take the natural logarithm value 10. to take these values as strings of discrete transform 11. will be of value to out DC component, to take other values as MFCC parameters.)

ofdm仿真程序，请大家参考。 ofdm仿真程序，请大家参考。(ofdm simulation program, please refer to everyone. ofdm simulation program, please refer to everyone.)