Laplacian_Eigenmaps

DFT进行频谱分析时的三种现象 1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。 采样前加低通滤波器防混叠 2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。 改用其他窗函数（非矩形）改善泄漏。 3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)

this is a simple seed counter program.

A multi-view image rectification algorithm for matrix camera arrangement

二维导频的信道估计，有效的减小瑞利多径信道对通信系统影响。OFDM系统，调制方式16QAM，线性内插。(2D pilot aided channel estimation. OFDM system, linear interpolation.)

说明：  使用一种方法来产生一组具有不同PSD的相关高斯过程的采样值(Use a method to generate a set of different Gaussian process of PSD-related samples)

这是根据韩京清的自抗扰控制技术书本编写的ADRC仿真程序，运用到坦克炮控系统上(This is according to Han Jingqing the ADRC ADRC technical books written simulation program, applied to the tank gun control system)

融合hog与lbp特征的图像分类，使用svm进行分类，最终给出运行混淆矩阵(The image classification of hog and LBP features is classified by SVM, and the run obfuscation matrix is finally given.)

说明：  FDTD的三维matlab程序,PML边界 (Matlab three-dimensional FDTD program, PML boundary)

本程序是在MATLAB中对LMS均衡算法的通信仿真。(This procedure is in the MATLAB algorithm of LMS balanced communication simulation.)

该文件时 mimo仿真源代码，对了解整体通信有用。(The file mimo simulation source code, useful in understanding the overall communication.)