微带缝隙耦合天线的 FDTD 仿真

估算带宽，先是计算输入信号单边带功率谱密度，然后估算出信号所占的带宽(Bandwidth estimation, first calculating the input signal is single sideband power spectral density, and then estimate the proportion of signal bandwidth)

MATLAB实现功率谱估计的程序最大熵谱法,Brug法和Levinson法。(MATLAB realize the power spectrum estimation procedure for maximum entropy spectral method, Brug law and Levinson Law.)

matlab做的关于最短路问题的实现。包含了2个课件。(matlab done on the realization of the shortest path problem. Contains two courseware.)

function Px=overlay(N,omega,A,sigma,num) OVERLAY Forms multiple power spectral density estimates. ------- USAGE Px=overlay(N,omega,A,sigma,num) Calculates the periodogram using an ensemble of realizations of a process consisting of a sum of complex exponential in white noise. N : length of the signal omega : vector containing the sinusoid frequencies A : vector containing the sinusoid frequencies sigma : the variance of the white noise num : size of the ensemble (number of periodograms)

用matlab画滞回曲线，每圈都能用不同颜色分开(Draw hysteretic curve, each circle can be separated by different colors)

说明：  可以通过画出傅里叶级数圆的动画，帮助加深对傅里叶级数的理解，并且有详细的注释。(By drawing the Fourier series circle animation, we can help deepen the understanding of Fourier series, and have detailed annotations.)

标准粒子群算法PSO,MATLAB中实验,对学习粒子群算法很有帮助(Standard particle swarm optimization PSO, MATLAB in experiments on learning PSO helpful)

基于Gabor小波变换和人工神经网络的人脸识别方法，matlab代码。(Based on the Gabor wavelet transform and artificial neural network methods for face recognition, matlab code.)

此代码为纯滞后系统的数字SMITH预估控制的MATLAB仿真代码(This code is a pure delay system of digital SMITH predictive control simulation of MATLAB code)

there is Design a butterworth low pass IIR filter. (a) Using butterworth to design an IIR low pass filter with Fs=8192hz and Fpass =1000 and Fstop =1200. You use the minimum order of filter. And match exactly at pass band. and other programs