elevator

说明：  matlab实现的语音分析，其中，有lpc分析。程序都经过软件验证，没有错误。(matlab implementation of speech analysis, of which there lpc analysis. Software programs have been validated without error.)

牛顿法， 快速解耦法， 。潮流计算在数学上属于多元非线性方程组的求 解问题，在用迭代法求解时涉及到大量的矢量和矩阵运算，因而寻求一个能高效 地处理矩阵运算的语言，将给潮流计算程序的编制带来巨大的方便.(fast flow electric Power flow calculation is mathematically the solution of multivariate nonlinear equations. Solving the problem involves a large number of vector and matrix operations when solving the iterative method, thus seeking a highly efficient solution. The language of matrix operation will bring great convenience to the compilation of power flow calculation program.)

matlab练习程序（最大类间方差二值化图像）这里用的方法是《特征提取与图像处理》3.3.4里的。( matlab exercise program (Otsu binary image))

Product life research paper

地震信号处理，虚同相轴方法预测层间多次波，将数据分成上下两部分，利用相关和褶积的原理预测出层间多次波。预测信号和原始信号在相位和振幅上存在差异，用L1范数匹配法进行匹配，其中，提供了两种方法解病态方程，分别为高斯-赛德尔方法和正则化方法。(Seismic signal processing, predicte internal multiples by construct virtual events .The data is divided into two parts, using the principle of correlation and convolution to predicte multiples. There are differences between the prediction signal and the original signal on the phase and amplitude, so we use the L1 norm method to match the singal.We provide two methods for solving ill equation, respectively Gauss- Seidel method and regularization method.)

用窗函数法设计一个长度N等于8的线性相位FIR滤波器。其理想的幅频特性为 分别用矩形窗、Hanning窗、Hamming窗、Blackman窗、Kaiser窗(ｂ=8.5)设计该滤波器。 (Window function method used to design a length N equal to 8 the linear phase FIR filter. Its ideal amplitude-frequency characteristics of rectangular windows, respectively, Hanning window, Hamming window, Blackman window, Kaiser window (b = 8.5) the design of the filter.)

说明：  kalman滤波，比较当过程噪声协方差Q和测量噪声协方差R取不用值时对卡尔曼滤波效果的影响(primary kalman filter.it shows how different R and Q aspect the reslut of kalman filter)

The program computes and plots the equation of time, the declination, and an analemma curve for various orbital parameters. The analemma is the curve traced by the position of the sun, measured at clock noon, over a year.

time, the function returns the order Jump to respond to the first (positive) wave peak b1, step response of the second (positive) wave peak b2, step response overshoot sigma, step response of the attenuation ratio of n, the step response of the attenuation rate pusi step response of the decay vibration cycle T, the step response of

Filtro notch para preoprocesamiento