fft2_and_fdtd

平面波展开法求解二维光子晶体能带结构源程序(Two-dimensional plane wave expansion method to photonic crystal band structure)

一种时频变换方法—Margenau-Hil分布，用于信号时频分析。(A time-frequency transformation method-Margenau-Hil distribution for the signal time-frequency analysis.)

对原始图像与gabor小波进行卷积后，得到gabor幅度图，对其进行灰度值分析和二值化后就能得到人眼窗口的定位(The original image after convolution with gabor wavelet get gabor magnitude diagram, its gray value analysis and binarization can get after the positioning of the eye window)

Visual Studio C/C++平台下开发Turbo编码调制源程序

7 ngoi lang ma tap 1 truyen ma doc kha hay

说明：  拉普拉斯高斯算子 拉普拉斯—高斯算子（Laplacian of Gaussian算子，通常缩写为log算子）是一种二阶微分算子，将在边缘处产生一个陡峭的零交叉。(Laplace Gaussian operator Laplace- Gaussian operator (Laplacian of Gaussian operator, often abbreviated as log operator) is a second-order differential operator, will be generated at the edge of a steep zero crossing.)

orthogonal division multiplixing(ofdm) is a new scheme used in wireless communication systems its also called multicarrier system and achieved this. cyclic prefix is used to minimize the intersymbol interference(ISI) and intercarrier interference

adc converter, sampling and cuantization code

比较经典的电机仿真 用于直流电机的研究 毕业设计中也可用到(The classic motor simulation graduation design for DC motor can also be used to)

说明：  常规调幅，也叫有载波双边带调制，按求包络的方法解调(Conventional AM, also known as there are bilateral with carrier modulation, in accordance with the method for envelope demodulation)