chuizhi

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.)

说明：  该程序展示出了多普勒压缩系数与距离之间的关系，也即显示出了单频矩形脉冲的距离分辨力。(The program demonstrates the Doppler compression factor and the distance between them and also that showed single-frequency rectangular pulse range resolution.)

A律压缩器子程序，用于matlab中A律压缩器子程序调用(A-law compression subroutine for A-law compressor routine matlab call)

V/F Control of induction motor simulation in matlab simulink

Hamming code. Simulation the BER to a code Hamming

一个不错的无传感器MRAS程序，分享一下(MRAS machine sensorless control)

用C语言编写的QAM调制解调程序，调试通过。(Written in C language with QAM modulation and demodulation process, through debugging.)

NEW POWER GENERATION POOF SOUND REFILLING CODE

主成分分析程序，简单易懂，修改路径可直接运行，附带详细说明(The PCA program with detailed explanations is very useful and effective，easy to understand. It can be run after modifying the input path.)

comparison between different buck circuits