code-builder_kad0zo

gradient conjugue à pas fix , à pas optimal

基于单比特反馈的一种改进对齐算法，可以极大加快收敛速度(Based on a 1-bit feedback to improve alignment algorithm can greatly speed up the convergence rate)

各种功率谱估计的源程序,有经典法中的间接法,welch法,现代谱估计中的levinson法,burg法,以及特征分解music法,可以得到仿真结果,自己为论文准备的希望对大家有所帮助(The source of a variety of power spectrum estimation, the indirect method in the classical method, Welch method spectrum estimation in the levinson France, burg France, and feature decomposition music France, you can get the simulation results, the paper ready we hope to help)

用Matlab程序实现P阶Levinson-Durbin算法。以一个2阶自回归模型（参数为b0=1, a1=0, a2=0.81）和一个2阶滑动平均模型（参数为b0=1, b1=1, b2=1）为例，选取观测数据长度为1000，分别用一个AR(2)模型和一个AR(10)阶模型来估计其功率谱。设激励信号模型的高斯白噪声的均值为0，方差为1。用Levinson-Durbin算法迭代计算AR模型参数，并用估计出的AR模型参数画出观测信号的功率谱。并对Levinson-Durbin算法的性能进行分析。(Write a small MATLAB program that implements the pthorder Levinson-Durbin (L-D). Run/Test the program using a AR(2) process (b0=1,a1=0, a2=0.81) and an MA(2) (bn=1,1,1) process-about 1000 samples. Use L-D with p=2 (for the AR) and 10 (for the MA). Plot the AR spectra produced in the two cases with L-D. List the direct form and the reflection coefficients in a table. Profile the L-D (total number of computations for a pthorder)

只是一个关于短时平均过零率的matlab代码(Just a short-time average zero-crossing rate on the matlab code)

超声在多层复合结构中传播的stoneley波的相关程序(Ultrasound propagation in multi-layer composite structure of stoneley waves associated procedures)

bp for matlab and can be train each oder

该代码为常见的数值分析，比如曲线拟合，预测，决策等。(The code is a common numerical analysis, such as curve fitting, forecasting, decision-making.)

磁共振成像仪的基本硬件,脉冲序列的基本概念和分类,MRI常规质控指标,MRI的优缺点(Magnetic resonance imaging of the basic hardware, pulse sequence and classification of the basic concepts, MRI routine quality control indicators, MRI of the advantages and disadvantages)

说明：  MATLAB结合autoCAD关于曲面绘图的案例，有参考价值。(MATLAB combines autoCAD drawing on the surface of the case, the reference value.)