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基于 MATLAB 的时域信号采样及频谱分析 基本要求：① 掌握数字信号处理的基本概念、基本理论和基本方法； ② 学会 MATLAB 的使用，掌握 MATLAB 的程序设计方法； ③ 学会用 MATLAB 对信号进行分析和处理； ④ 信号的各参数需由键盘输入，输入不同参数即可得不同的x(t) 和x(n)； ⑤ 撰写课程设计论文，用数字信号处理基本理论分析结果。 (MATLAB-based time-domain signal sampling and spectral analysis of the basic requirements: ① to grasp the basic concepts of digital signal processing, basic theory and basic methods ② learn the use of MATLAB, MATLAB programming method to master ③ learn to use MATLAB to analyze the signal and processing ④ signal parameters to be input from the keyboard, the input parameters can be different in different x (t) and x (n) ⑤ thesis writing course design, with the basic theory of digital signal processing analysis.)

说明：  捕获IP数据包的小程序,原理是使用PCAP库.开发语言为C(IP packet capture the small programs, principles for the use of Cards. For the C programming language)

It is an algorithm of knn.

图像算法algorithmreduction(algorithm)

四阶龙哥库塔法 实现非线性控制 及其matlab实现(Fourth-order Long Ge Kuta method for nonlinear control and realize matlab)

neural network_based face detectionw基于神经网络实现人脸识别的论文(neural network_based face detection)

matlab入门教程里面含有简单的命令，各个函数的总结和概括(matlab introductory tutorial which contains a simple command, all functions summarize and generalize)

说明：  编写程序建立套管换热器数学仿真 模型，并计算换热器两侧流体沿程温度、对流换热系数、雷 诺数与热流密度的变化规律。(The mathematical simulation model of casing heat exchanger was established by programming, and the variation of temperature, convective heat transfer coefficient, Reynolds number and heat flux along the two sides of the heat exchanger were calculated.)

使用下面的参数设计信道均衡器，其中使用两个独立的随机数发生器，一个用x(n)来表示，用来测试信道；另一个用v(n)来表示，用来模拟接收器中的加性白噪声的影响。序列x(n)是x(n)=±1的伯努利序列，随机变量x(n)具有零均值和单位方差。第二个序列v(n)具有零均值，其方差由信噪比决定。均衡器有11个抽头。(Use the following parameter design of channel equalizer, which uses two separate random number generator, one with x (n) to indicate, to test the channel the other with v (n) to indicate to simulate the receiver in The additive white noise. Sequence x (n) is x (n) = ± 1 of the Bernoulli sequence of random variable x (n) with zero mean and unit variance. The second sequence v (n) has zero mean, its variance decision by the signal to noise ratio. There are 11-tap equalizer.)

设计一个模拟信号（几个不同频率简谐信号之和，再加一个白噪声） 用不同的采样频率把信号离散（满足和不满足采样定理）， 画出信号波形； 分别作信号的谱分析（幅值）；对比采样频率的影响； 选用不同窗函数对同一个信号作谱分析，比较分析。(signal process using matlab)