chapter8

matlab pll仿真，利用.m文件编写，可用做了解PLL的资料(matlab pll simulation using the. m documentation, can be used to understand the data PLL)

摘要:正交频分复用(OFDM)是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理,重点研究了理想同步情 况下,保护时隙(CP)和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系 统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序。最后给出在不同的信道条件下,保 护时隙、信道估计方法对OFDM系统误码率影响的比较曲线,得出了较理想的结论。 (O FDM is the key techno logy of 4G in the field of mobile comm unication.In this article O FDM ba sic p rinc ip le is briefly in troduced.Then,the influence of CP and d iffe rent channe l e stim a tion on the system pe rfo rm ance is emp ha tica lly analyzed respectively in Gauss and R ayle igh fading channe ls in the cond ition of ideal synchronization.B e sides,based on the given system mode l O FDM system is compu te r sim u la ted w ith MA TLAB language and the refe rentia l design p rocedure is given.Fina lly,the B ER cu rves of CP and channe l e stim ation a re given and comp ared.The conclusion is sa tisfac to ry. )

Matlab Assignment describing sampling,histogram,cdf,pdf,autocorrelation and crosscorelation,finding of mean and variance using matlab.It also contains FPGA tutorial of LED blinking project design and State Machine Design with their solutions.

双馈风力发电空载并网前的模型，以实现定子电压与电网电压一致(Doubly-fed wind power generation and net pre-load model, in order to achieve consistency with the grid voltage stator voltage)

实现了二维结构的拓扑优化设计，并且对程序的每一步进行了详细的解释和说明，对于拓扑优化的初学者来说，很有帮助(The topology optimization design of two-dimensional structure is realized, and every step of the program is explained and explained in detail, which is very helpful for beginners of topology optimization.)

说明：  在机器学习问题中，很多的算法归根到底就是在求解一个优化问题，然而我们的现实生活中也存在着很多的优化问题，例如道路上最优路径的选择，商品买卖中的最大利润的获取这些都是最优化的典型例子，前面也陆续地有一些具体的最优化的算法，如基本的梯度下降法，牛顿法以及启发式的优化算法(PSO,ABC等)。(In machine learning problems, many algorithms are in the final analysis to solve an optimization problem. However, in our real life, there are also many optimization problems, such as the choice of the optimal path on the road, the acquisition of the maximum profit in the sale of goods. These are typical examples of optimization. There are also some specific optimization algorithms, such as basic gradient Descent method, Newton method and heuristic optimization algorithm (PSO, ABC, etc.).)

说明：  matlab 平面单元分析 适合采用matlab进行有限元计算的朋友(Plane element analysis matlab matlab for finite element analysis using friends)

Reservoir Optimization with PSO

matlab的weno源程序，包括burges方程求解的高斯迭代程序和用weno格式求解burgers方程，还有精度比较(The weno matlab source, including burges Gauss equation and iterative procedures for solving equations burgers, as well as the accuracy of comparative format with weno)

该代码实现的功能为检测指纹图像中的奇异点，特点为速度快，实现简单。(The code implements the function of detecting singular points in fingerprint images, characterized with efficiency and ease to implement.)