matlab

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.))

采用小波相邻系数降噪，然后用改进的局域均值分解对滚动轴承进行特征提取，得到特征向量(Using adjacent wavelet coefficients of noise reduction, and then use the improved local mean decomposition characteristics of rolling bearing are extracted, get the feature vector)

多方式进化遗传算法Matlab源代码，对于单种群进化，采用多方式进化方法提高全局搜索能力和收敛速度(Multi-way evolutionary genetic algorithm Matlab source code for single species evolution, evolutionary methods to improve multi-mode global search ability and convergence speed)

SISI m-cap LED pre equalizer with bitloading in vlc systems

说明：  lda是一个集合概率模型，主要用于处理离散的数据集合，目前主要用在数据挖掘（dm）中的text mining和自然语言处理中，主要是用来降低维度的(lda is a set of probability models, mainly for dealing with discrete data sets, the key used in data mining (dm) in the text mining and natural language processing, is mainly used to reduce dimension)

对stoke 方程的非协调员的新型解法,效率高，求解时间段等特点(a new method for stoke equation)

基于Matlab的语音信号滤波器的设计与实现(Design and implementation of speech signal filter based on Matlab)

太阳同步卫星及其轨道计算，用于设计太阳同步轨道，并且给出一个实例，介绍卫星轨道参数的计算方法(Sun-synchronous satellites and their orbital calculations for the design of a sun-synchronous orbit, and an example is given, satellite orbit parameters calculation method)

通过matlab仿真对多种不同的盲均衡算法收敛性能进行了比较(By matlab simulation for a variety of different blind equalization algorithm compares the performance of convergence)

说明：  已经验证过的64点FFT的Matlab源代码(64 points of FFT algorithm by been verified through matlab tool)