Chapter-5

code about fdtd gooood3

《MATLAB统计分析与应用：40个案例分析》程序与数据-第八章源代码：数据拟合(" MATLAB statistical analysis and application: 40 Case Studies" program and data- Chapter VIII Source: Data Fitting)

航空涡轮发动机气动力学建模计算，希望对大家有所帮助(Aviation turbine engine gas dynamics modeling, we hope to help)

遗传算法( Genetic Algorithm，GA) 是建立在自然选择原 理和自然遗传机制上的迭代式自适应概率性搜索方法，它能 够模拟自然界中生物进化的发展规律，对特定目标实现自动 优化(Genetic Algorithm (Genetic Algorithm, GA) is based on the principle of natural selection and natural genetic mechanisms iterative adaptive probabilistic search method, it can simulate the development law of biological evolution in nature, specific targets to achieve automatic optimization)

PWM整流器的直接电流控制，采用双闭环控制，调试通过，效果一般(PWM rectifier direct current control, dual-closed-loop control, debug is passed, the effect of general)

说明：  自己根据<最优化理论与基础>课本编的matlab程序 最优化问题求解: 牛顿法 自助输入目标函数及其梯度(Optimization: Newton Method Type in objective function and its gradient by yourself.)

利用Mersenne Twister算法产生随机数，并测试和分析了其随机性。 程序中还加入了界面显示。 各个文件为： initGenerator.m： initGenerator函数，用于初始化随机序列的长度和值 generateNum.m: generateNum函数，当index为0时被调用，用于创建624维的移位寄存器数组 extractNum.m: extractNum函数，根据index当前值选择数组中的数生成随机数，同时改变index的值。 main.m: main主函数，输入种子seed和产生数目total，输出产生结果及随机性测试结果 mymy.m和mymy.fig: 用于界面显示的部分，这两个文件会通过界面传入seed和total的值，并调用main函数，在相应的框中显示输出结果。 (According to the algorithm principle on Wikipedia, the Mersenne Twister algorithm to generate random numbers, and test and analysis of its randomness. The program has also joined the interface display. The individual files are: initGenerator.m: initGenerator function used to initialize the random sequence length and value generateNum.m: generateNum function is invoked when the index is zero, and used to create a 624-dimensional shift register array extractNum.m: extractNum function, according to index the current value to select the number to generate random numbers, and change the value of the index in the array. main.m: main function of the input seed to seed and produce the number of total, the output generated results and the randomness of the test results mymy.m and mymy.fig: Part of these two files for interface display interface incoming seed and the total value of, and calls the main function, to display the output in the appropriate boxes.)

The simulink of ofdm system.

simulink module training!!

本文介绍了一种基于自适应滤波算法的语音信号增强处理的方法。文中在扼要介绍了目前常用的语音增强方法的基础上，重点介绍了采用LMS算法的自适应语音增强系统。对三种LMS算法（基本LMS算法,符号误差LMS算法及NLMS算法）进行仔细研究，并用Matlab仿真实现，验证比较了三种算法的语音增强效果。(In this paper, a system of speech enhancement is discussed based on self-adaptive algorithm. On the basis of presenting an overview of a number of speech enhancement is described in detail based LMS algorithm.This paper researches sorts of LMS algorithms（the basic LMS algorithm,the sign error LMS algorithm and NLMS algorithm） in detail, and compares the three algorithm of speech enhancement effect with Matlab simulation validation.)