4dpsk

recursive mean-separate histogram equalization

this code for voice detection

独立成分分析算法降低原始数据噪声，部分实现了追踪测速迭代松弛算法，有信道编码，调制，信道估计等。( Independent component analysis algorithm reduces the raw data noise, Partially achieved tracking speed iterative relaxation algorithm, Channel coding, modulation, channel estimation.)

该电子书是用MATLAB语言对数值分析进行描述的。例如：矩阵运算，矩阵分解，微分方程求解，函数插值，函数拟合等数值问题。另外对MATLAB绘图进行了一定的介绍。(The book is a numerical analysis using MATLAB language to describe. For example: matrix operations, matrix decomposition, differential equation solving, function interpolation, function approximation and other numerical problems. In addition to the MATLAB graphics, which must be introduced.)

DecayWav.txt输入下冲激响应，应用最小二乘算法对ARMA模型参数进行估计(DecayWav.txt input impulse response, using the least square algorithm to estimate the parameters of the ARMA model)

this zip file is oneof a class of artnmap network

riccati传递矩阵法算例，计算大转子的临界转速，固有频率(riccati example transfer matrix method to calculate the critical speed the greater trochanter, natural frequency)

说明：  实现了系统辨识的算法，Matlab实现了产生一均值为0，方差为1的噪声，给出系统辨识的效果。(To achieve the system identification algorithm, Matlab realized generated a mean 0 and variance of a noise, the effect of system identification is given.)

用BP网络逼近某曲线函数，在神经网络中邮广泛的应用 是系统辨识的基础。 通过反馈来不断的调整系数，限制了最大循环次数 防止进入死循环，当然如果想要得到更精确的系数可以增大循环次数。 (Using BP network function approximation to a curve, mail is widely used in neural network is the basis of system identification. Through feedback to constantly adjusted factor, limit the maximum cycle times to prevent into dead circulation, and of course if you want to get a more accurate coefficients can increase the cycles.)

fit nan in a figure or plot