105230336OFDM-mimo

flat line control refister

给定一个音频范围内的模拟强噪声随机信号（强噪声+周期信号），将信号从强噪声中提取出来，并计算原信号及提取信号的均值、平均功率、方差、频谱及功率谱密度、互相关等 并附带图形(Given within the scope of an audio simulation of strong noise random signal (noise+ periodic signal), the signal from strong noise in the extracted and calculated signals and extract the original signal of the average, average, variance, spectrum and power spectral density , such as inter-related and incidental graphics)

t-copula 小程序，很是实用哦。。。。。(t-copula small programs, it is practical Oh. . . . .)

经验模态分解，依据数据自身的时间尺度特征来进行信号分解，给出本征函数。(Empirical mode decomposition, based on the data itself characteristic time scale for signal decomposition, given the intrinsic function.)

boc调制方式的频谱特性,说明其对多径干扰的优良特性。。(boc spectrum)

说明：  pso基本算法的代码，能满足最基本的需要，适合初学人员，便于理解(pso )

通过matlab仿真，做出单相变压器不同负载性质的相量图(Matlab simulation, to make a single-phase transformer phasor diagram of the different nature of the load)

耳蜗实质上相当于一个滤波器组，耳蜗的滤波作用是在对数频率尺度上进行的，在1000HZ下，人耳的感知能力与频率成线性关系；而在1000HZ以上，人耳的感知能力与频率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula )

model Simulink of arduino

对采集到的振动信号进行EMD分解，得到一系列频率不同的经验模态函数IMF分量，可以用来滤波和提取原信号的特征。(The collected vibration signals of EMD, get a series of different frequency components of IMF empirical mode function can be used to filter and extract features of the original signal.)