image_change_detecting

本程序实现对图像的打开、退出操作，以及图像旋转、添加噪声、图像平滑（椒盐噪声处理、均值低通滤波处理、中值滤波处理）、图像直方图显示、预测编码，在MATLAB中用GUI实现。(This program implements the image is opened, quit the operation, as well as image rotation, adding noise, image smoothing (salt and pepper noise processing, the mean low-pass filtering, median filtering process), histogram display, predictive coding, in MATLAB using GUI implementation.)

初学者，查找相邻像素值4-PATH ，然后用白色标出。(Find the adjacency value of a given pixel for image )

跳频信号是新的通信与雷达信号的一种，其保密性强，不易受噪声干扰，但解调复杂。本程序给出了高斯白噪声情况下调频信号的模拟过程，供通信和雷达专业的师兄弟参考。这是本文论文一部分的程序(FH signal is a new kind of communications and radar signals, and its confidentiality, less susceptible to noise interference, but the demodulation complexity. This procedure gives the Gaussian white noise process of FM analog signals for communication and radar fellow professional reference. This is a part of this thesis, the procedures)

坦克不变矩的智能识别,压缩包有坦克的图像,对不变矩的学习非常有用.(Moment invariants of the intelligent recognition tanks, compression tanks packed with images of the moment invariants of study very useful.)

说明：  该程序可以生成WVD分布，将其做成函数可以方便研究员做研究使用。(it can generate the WVD function.)

用于求解不可压ns方程的动量守恒计算方程，采用了二维对称调用的技术。(Ns for solving equations of incompressible equation of momentum conservation calculation, using the technique called two-dimensional symmetry.)

2D PWM Photonic crystal source code

Flexible construction of girth-six QC-LDPC Codes(The program constructs girth-six QC-LDPC codes given row-weight,k, column-weight,j, and sub-matrix size,m. The obtained parity-check matrix is stored in H. The construction has flexibility in that j,k and m can be varied.The program achieves girth-six by applying the row-column constraint. There are m rows in j submatrices. No two rows should share the same column more than once. This constraint is applied to avoid 4-cycles. The construction has flexibility in that j,k and m can be varied.)

分数时延估计文档对于宽带信号, 基于移相的窄带波束形成方法会导致方向图波束指向的偏移和主波束畸变, 并且无法有效地抑制宽带干扰。该文提出了基于数字时延加抽头延迟线 (tapped delay line , TDL)结构的宽带自适应波束形成方法。 该方法采用数字时延滤波单元补偿宽带信号在波束指向上的相位和包络偏移, 并用基于TDL 的空时二维滤波处理抑制宽带干扰。分析和实验结果表明, 该方法可以有效地合成空间宽带波束并抑制宽带干扰, 提高信干噪比(sig nal-to-interference-plus-noise r atio , SINR)增益。(frac delay estimation)

对图像运用zernike矩提取轮廓和图像重构(code)