dct2_out

对时域均衡进行分析比较，得出较好的编码方案。(equals)

This is a simple adder program in matlab

matlab code for image segementation

可以得到很精确的幅值、频率、相位估计，是学习PCA特征提取的很好的学习资料，合成孔径雷达（SAR)目标成像仿真，有均匀线阵的CRB曲线，匹配追踪和正交匹配追踪，对信号进行频谱分析及滤波，模式识别中的bayes判别分析算法。 ( You can get a very accurate amplitude, frequency, phase estimation, Is a good learning materials to learn PCA feature extraction, Synthetic Aperture Radar (SAR) imaging simulation target, There ULA CRB curve, Matching Pursuit and orthogonal matching pursuit, The signal spectral analysis and filtering, Pattern Recognition bayes discriminant analysis algorithm. )

说明：  设计巴特沃斯型、椭圆、切比雪夫数字低通滤波器，并对加入噪声的图像进行滤波(design Buttetworth、cheby1 and ellip LF,and use these filters in image processing.)

SAR点目标仿真原理和程序，雷达技术及信号处理作业(SAR point target simulation principles and procedures, radar technology and signal processing operations)

旅行商问题（Travelling Salesman Problem, 简记TSP):假设有一个旅行商人要拜访n个城市，他必须选择所要走的路径，路经的限制是每个城市只能拜访一次，而且最后要回到原来出发的城市。路径的选择目标是要求得的路径路程为所有路径之中的最小值。 此处使用蚁群算法求解TSP问题(Suppose a business trip to visit n cities, he must choose the path to go, pass through the restriction is to visit each city only once, and finally go back to the original departure city. Path selection objective is to get the path distance to the minimum value among all paths.Here,we use the procedure of ant colony algorithm to work out the TSP.)

matlab实现LDA，使数据得到很好的线性分析。是目前数据比较好的处理方法。(The Matlab is used to make the LDA come true。)

分析海洋环境噪声矢量场特性对低噪声潜艇辐射噪声的测量、信号检测、设备抗干扰能力和系统测量增益的有效提高、以及优化阵的设计技术和海洋环境噪声测量设备(浮标和布阵)的研究具有重要的作用。(Analysis of ocean ambient noise vector field characteristic of low noise submarine radiated noise measurement, signal detection, equipment anti-interference ability and effectively improve the system measurement gain, and optimize the design of the array technology, and the Marine environment noise measurement equipment (buoys and disposal) plays an important role.)

通过自动阈值选择方法实现图像二值化。初始阈值T是图像均值；T把图像直方图分成R1和R2两个区域；计算R1和R2均值u1和u2，选择u1和u2均值作新的阈值；重复以上步骤直到T值基本不变。(Automatic Threshold Selection；)