ns_2013A

说明：  基于信噪比的QAM星座图算法描述，有很多星座图的相关知识及仿真(SNR of the QAM constellation based on algorithm description, there are many constellation of knowledge and Simulation)

该程序的主要目的是给出鲁棒H无穷控制器的设计过程，并通过绘图形象反映仿真结果，具有较高的参考价值。(The main purpose of this code is to demonstrate the use of the software for robust H_infinity control design.)

在空间谱估计中的多重信号分类算法的一个小示例(A small example of multiple signal classification algorithms in spatial spectral estimation)

对音频信号分帧加窗,对每帧进行三阶小波变换,取其逼近系数平均值(一般为零).在此嵌入二值图像 并有对潜入水印信号进行盲检,恢复其嵌入水印(Sub-frame of the audio signal increases the Hamming window for each frame impletment third-order wavelet transform, whichever is close to the average coefficient (usually zero). according to this embedding binary image and resume its embedded watermark from the watermark signal by the Blind detection)

基于MATLAB的近邻法剪辑算法的实验，源代码，及数据分析(Based on the MATLAB nearest-neighbor method clip algorithm experiment, the source code, and data analysis )

David G.Lowe的SIFT算子在Matlab环境下的实现，尺度不变的特征提取，并对两幅图片的特征点进行匹配，运行前要把siftWin32文件放在Matlab的win目录下，具体请参照README。默认为输入为灰度图像，要处理彩色图片请先转灰度rgb2gray() (The realization of SIFT operator David G.Lowe in the Matlab environment, the scale invariant feature extraction, matching and pictures of the two feature points, the siftWin32 file in the Matlab win directory to run before, please refer to the specific README. The default is the input for the gray image to color image processing, please turn gray by rgb2gray ())

basic matlab programs-I

用窗函数（矩形窗、汉宁窗、海明窗和布莱克曼窗）法设计FIR数字滤波器(Using the window function (rectangular window and hanning window, hamming window and blackman window) method to design FIR digital filter)

四进制差分相移键控(键控调制方法)，樊昌信《通信原理》内容(Four M-ary differential phase shift keying (keying modulation method), Fan Changxin " Communication Theory" content)

this is a code that performs Hilbert Huang tranform