Image reterival based on colour averaging

文件是OFDM的系统仿真程序！通过matlab仿真平台来实现！(The system file is OFDM simulation program! Matlab simulation platform adopted to achieve!)

基于稀疏分解的单个信号盲分离，从多个混合信号中，提取出我们需要的信号(Sparse decomposition based on a single blind signal separation, from the number of mixed-signal, we need to extract the signal)

说明：  MATLAB答题卡识别（GUI，论文） 本课题为基于MATLAB的不变矩答题卡识别。可识别学号，学科，答案，并进行分数统计，以及判断是否及格。后台可设置标准excel答案。经过灰度变换形成灰度图像、二值化处理、图像滤波、边缘检测、hough变换等预处理。带GUI交互式界面。(Matlab answer card recognition (GUI, paper) This topic is based on MATLAB moment invariant answer card recognition. Can identify student number, subject, answer, and carry out score statistics, as well as judge whether pass. Standard excel answers can be set in the background. After gray-scale transformation, gray-scale image, binary processing, image filtering, edge detection, Hough transform and other preprocessing are formed. With GUI interactive interface.)

说明：  提取目标线谱特征的时频处理方法 lofar方法(A time-frequency processing method, lofar method, for extracting the characteristics of the target line spectrum)

说明：  matlab实现原位FFT算法，可用于分析FFT中的蝶形运算方式。(MATLAB realizes the in-situ FFT algorithm, which can be used to analyze the butterfly operation mode in FFT.)

fsk调制的matlab实现(matlab modulation fsk realize)

a matlab source code program about design process

纯弯构件受力分析，曲率-弯矩关系，荷载-挠度关系。(Pure bending component stress analysis, curvature- the moment the relationship between the load- deflection relationship.)

现代谱估计的程序，对给定的随机信号利用yule-walker方程进行谱估计与其理想功率谱进行谱估计的对比，并比较参数。(Modern spectral estimation procedures, given the use of yule-walker random signal spectrum estimation equation from its ideal power spectrum spectrum estimation contrast and compare the parameters.)

解耦，恢复原信号，双向PCS控制仿真，可以得到很精确的幅值、频率、相位估计，通过matlab代码，模拟数据分析处理的过程，处理信号的时频分析。