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MATLAB 数学工具软件 实例简明教程(MATLAB mathematical tools simple tutorial examples)

基于matlab的7阶不变矩,以源码的形式展示出来(Based on the 7-order invariant moments matlab)

遗传算法，用matlab来实现，图像美观，更接近真实数据(Genetic algorithm, using matlab to achieve, beautiful images, closer to the real data)

例4：在sinc(t)信号中叠加噪声，分析对应频谱 fs=100 采样频率,必须大于两倍基带信号最高频率 ts=1/fs 采样时间间隔 T=2 时间窗大小 ( x=x+0.1*randn(1,N) x=awgn(x,-10, measured ) figure plot(t,x) title( 时域信号图 ) xlabel( t /s ) y=fft(x,N) figure if mod(N,2)~=0 N=N-1 end f=linspace(0,fs/2,N/2) plot(f,abs(y(1:N/2))*2/N) title( 叠加噪声的sinc(t)信号频谱 ) xlabel( f /Hz ) figure y0=y(1:N/2) P=y0.*conj(y0)/N P=10*log10(P) plot(f,P) title( 功率谱 ) xlabel( f /Hz ) )

三元组表示的稀疏矩阵的加法,减法,乘法运算器-Triples express the sparse matrix of the adder, subtraction, multiplication device(ples express the sparse matrix of the adder, subtraction, multiplication devic)

利用非线性控制完成光伏并网逆变器的设计，设计中采用先进的反步法，介绍很好。(Using nonlinear control to complete the design of the photovoltaic (pv) grid inverter, adopted in the design of advanced reverse moves, the introduction is very good.)

神经网络工具包，安装在MATLAB中，使用神经网络计算时需要安装，可以调用其中的函数(Neural network toolkit, installed in the MATLAB, the use of neural network calculation need to install, you can call the function)

数字信号处理的滤波器设计，有限长冲击响应FIR滤波器,(Digital signal processing filter design, finite impulse response (FIR) filter,)

三相并网系统，包括锁相环，坐标变换，解耦控制等算法，通过验证(Three-phase grid-connected systems, including phase-locked loop, coordinate transformation, decoupling control algorithm, validated)

Matlab环境下基于OPC技术实现动态矩阵控制 Matlab环境下基于OPC技术实现动态矩阵控制(Matlab environment based on OPC technology to achieve dynamic matrix control Matlab environment OPC technology based on Dynamic Matrix Control)