gauss_seidel

FDD链路的仿真使用的是KA波段，其中在接收端涉及到多种算法（位同步算法，DD算法等）(FDD link simulation using KA band)

本文对偏振光干涉理论进行了MATLAB 设计与仿真，在分析偏振光干涉现象模型的基础上，运用MATLAB 工具实现了偏振光干涉现象的计算机仿真，使这一抽象而复杂的物理现象变得直观、简单，且容易理解。(Polarized interference theory, design and simulation of MATLAB, polarized interference computer simulation using MATLAB tool based on the analysis of polarized light interference phenomenon model so abstract and complex physical phenomena become intuitive, simple, and easy to understand.)

当信噪比低，小信号输入时噪音严重，在整个音域的声音明显变得浑浊不清，不知发的是什么音，严重影响音质。信噪比的大小是用有用信号功率（或电压）和噪声功率（或电压）比值的对数来表示的。(When the signal to noise ratio is low, serious small signal input noise, the sound of the entire range becomes significantly turbid, I do not know what made the sound, seriously affecting the sound quality. Size is the number of the signal to noise ratio by the ratio of desired signal power (or voltage) and the noise power (or voltage) represented.)

考虑次级声反馈的自适应滤波器算法，基本原理是最小均方误差(Filter X Least Mean Square adaptive filter)

SAR 仿真程序,包含基础知识介绍,信号模型,回波仿真等(SAR simulater)

说明：  本程序用来求转子的临界转速，模型为有限元模型(This procedure is used to seek the rotor critical speed, the model for the finite element model)

gui code of signature detection from scanned document.

扩散系统之浓度分布的装置。管中储放静止液体B，高度为L=10 ㎝，放置于充满A 气体的 环境中。假设与B 液体接触面之浓度为3 C 0 0.01mol m A = ，且此浓度不随时间改变 而改变，即在操作时间内( h = 10天)维持定值。气体A 在液体B 中之扩散系数为 D m s AB = 2×10− 9 2 。试决定以下两种情况下，气体A溶于液体B中之流通量(flux)。 (a) A 与B 不发生反应； (b) A 与B 发生以下之反应 A+ B→C ， A A − r = kC 其反应速率常数k = 2×10− 7 s− 1。 (Diffusion system of concentration reference device shown in Figure 3. Tube in the store still liquid B, L = 10 cm height, placed in full A gas environment. Assuming the contact surface of the liquid with the B concentration of 3 C 0 0.01mol m A =, and this concentration does not change with time and change, that is, the operating time (h = 10 days) to maintain constant. Gas A in liquid B, the diffusion coefficient D ms AB = 2 × 10-9 2. Decided the following two test cases, the gas dissolved in liquid B in the A liquid (flux). (A) A and B do not react (b) A and B of the following reaction occurs A+ B → C, AA- r = kC, the reaction rate constant k = 2 × 10-7 s-1.)

蒙特卡洛方法（Monte Carlomethod）非线性反演方法及应用(Monte Carlo method (Monte Carlo method）non-linear inversion method and its application)

Dereverberation code in matlab