lab2

利用matlab实现维特比编解码，采用的是汉明距离，[3 1](Using Viterbi decoding matlab implementation, using the Hamming distance, [31])

QGA的原代码，你可以很快的上手进行编写你自己所有的程序，如果有什么困难可以联系我，谢谢！(QGA of the original code, you can quickly get started to write all your own procedures, if any difficulties you can contact me, thank you!)

matlab语言。多导体传输线之间耦合的问题！实习时编写。(matlab language. Coupling between the multi-conductor transmission line problem! When writing internship.)

包括频域解与动态解 误差改进方法 信号的频谱等程序(Including the frequency-domain solutions and dynamic solutions to improve the methods of the error signal spectrum, such as procedures)

语音信号的基音检测与估计对信号的估计具有重要作用。用不同方法进行基音检测(Pitch detection signal and the estimated speech signal estimate plays an important role. Pitch detection using different methods)

采用离散余弦变换和霍夫曼编码，对图像进行压缩存储，并且完成解压缩(Discrete cosine transform and Huffman coding, the image compression and storage, and complete decompression)

Simple program that encrypts and Decrypts text with options to generate/Open and Save key.

These are som documents about the Civil works. For more information, pls. contact me.

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)

Matlab plot函数使用方法（详细）( Matlab plot function using method (detailed))