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说明：  文主要目的是针对讯号频谱分析仪(Signal spectrum analyzer)做功能测试，以确定讯号频谱分析仪之各种运算功能正确，其中测试共 分为正弦与余弦波检查、反假象滤波器检查(Antialiasing Filter Check)、频率响应函数与相位角检查(FRF & Phase Check)、自身能量密度函 数检查(Power Spectrum Check)、动态范围检查(Dynamic Range Check)等五个项目的快速傅立叶转换检查(Fast Fourier Transform Check)，并 对五个项目之测试原理、测试步骤及测试结果加以说明，提供频谱分析仪功能测试之正确方法，亦可作为自制频谱信号处理单元及频谱分 析程式之验证。(The main purpose of the text is for the signal spectrum analyzer (Signal spectrum analyzer) to do functional testing, to determine the signal spectrum analyzer features a variety of computing the right, which is divided into sine and cosine test wave inspection, anti-false filter inspection (Antialiasing Filter Check), the frequency response function and phase angle of inspection (FRF &amp Phase Check), its energy density function check (Power Spectrum Check), dynamic range checking (Dynamic Range Check) and other five projects FFT check (Fast Fourier Transform Check ), and principles of the five test items, test steps and test results to show that the spectrum analyzer to provide the proper testing method may be used as self-spectrum signal processing unit and the spectral analysis of the verification.)

基于LBM圆柱绕流模拟matlab程序代码，简单几行代码就可以实现圆柱绕流的可视化模拟，而且还是实时的，采用D2Q9模型，适合初学者学习。(Circular cylinder based on the LBM simulation matlab program code, a simple few lines of code can achieve circular cylinder visual simulation, but also real-time using D2Q9 model, suitable for beginners to learn.)

车牌检测系统，使用matlab实现，里面带有车牌图片，很不错(License plate detection system using matlab to achieve, which with the license plate picture, very good)

使用simulink对锂电池进行建模，电池的参数随SOC的变化而变化，精度很高(Simulink modeling of lithium batteries, battery parameters change with the changes in the SOC, high precision)

以优化SVM算法的参数c和g为例，对GWO算法MATLAB源码进行了逐行中文注解。 是很好的学习材料。(SVM algorithm to optimize the parameters c and g, for example, for GWO algorithm MATLAB source was progressive Chinese annotations. It is a good learning materials.)

无约束一维极值优化问题，这里提供算法，供大家参考(Extreme unconstrained one-dimensional optimization problem, here algorithms for reference)

说明：  两自由度系统振动模型，初级学习模型，Simulink(Two-degree-of-freedom system vibration model, primary learning model, Simulink)

一、 利用MATLAB产生下列连续信号并作图 （1） x(t)=-2u(t-1),-1<t<5 x(t)=cos(100t)+cos(3000t),设-0.1<t<0.1(one, Using MATLAB produce the following continuous signals and mapping (1) x (t) =- u (t-1)-1)

一个简单的用matlab实现的成绩查询系统。(Matlab with a simple query system to achieve results.)

求线性方程组的列主元Gauss-jordan消元法(Linear Equations of the column main element Gauss-jordan elimination method)