lyaprosen

returns the envelope of a signal. matlab code

最优波束形成的空时过程特性（包括快拍模型、空时随即过程、阵列和孔径的谱采样等）(Optimal beamforming space-time process characteristics (including the snapshot model, then space-time process, arrays and spectral sampling of the aperture, etc.))

彩色图像的局部直方图均衡化程序，可一定程度上增强图像的对比度(Local histogram equalization process a color image, the image contrast can be enhanced to some extent,)

我国是世界上小麦种植面积最大和消费最高的国家之一。小麦为国际主粮之一，也是食品工业的重要原料。作为最重要粮食品种之一的小麦，其价值与用途取决于它的品质。因此，基于信号处理技术，研究客观、便捷的小麦品质测定方法对提高小麦品质、减少产后损失、保证国家粮食安全具有十分重要的意义。本课题拟在研究、分析国内外无损检测技术在农产品品质分析应用现状和研究进展的基础上，研究小麦籽粒声信号的预处理方法。根据声学检测原理，研制出小麦籽粒的声信号采集装置，首先采集小麦籽粒下落碰撞所产生的声音信号，对小麦声信号进行编辑和预处理，实验结合信号处理技术及MATLAB软件，对单粒小麦样品的声信号进行谱估计和小波变换，提取出时域和频域特征参数，为探讨小麦声学特性与其品质指标的关系奠定基础。本论文利用MATLAB软件编写小麦声音信号预处理程序，通过对小麦籽粒声信号进行处理，成功的提取出了有效的时域、频域的多种特征参数，为研究其声学特性与小麦品质内在的关系，做了充分的准备工作。(China is one of the countries in the world which has the largest wheat growing area and highest consumption. Wheat is one kind of the staple food in the world and also an important material for food industry. The value of wheat and its use all depends on is quality, To enhance quality of wheat,readuce post harvest loss and ensure grain security, great efforts should be made to develop rapid, objective, and easy methods for assessing wheat quality using signal processing techniques. This paper do the research of wheat signal preconditioning method and it basis of analysis domestic and foreign non-destructive testing technology.According to acoustic detection theory,an equipment of obtaining wheat sound signals is developed. Collecting the dropping voice signals of different varieties of wheat samples.And then do editing and sound signal preprocessing on wheat through signal processing technology.This paper do some research about spectrum estimate and wavelet transform on single wheat wi)

这是一个矩阵编码的仿真程序，可以验证编码结果(It s a matrix encoding program)

It is an ebook about the mathematical portion of teh GRE preparation class. it have all the problems related to different chapters and practise questions

matlab jepg压缩程序，详细代码函数，加完整例子，基于Dct变换(jepg compression program)

多重比较LSD法实现方差分析的matlab代码，调用格式为输入A矩阵，每一列是一个因素水平，当重复数不相等时，缺失数据用nan补齐。输出参数为各均值的比较表。(Multiple variance analysis method to achieve more LSD matlab code, call format for the input A matrix, each column is a factor level, when the number of repetitions is not equal, nan filled with missing data. Output parameters for the mean comparison table.)

harris角点检测功能，可用于多种图像 (harris corner detection function can be used for a variety of image)

brightness scroll image