seismic-exploration

阀值去噪 用db1小波对原始信号进行3层分解并提取系数(Db1 wavelet threshold de-noising with the original signal decomposition and extraction coefficient of 3 layers)

二进制LDPC码的一种构造方法mackey构造，是学习LDPC码的基础(Binary LDPC code construction method mackey construction, is to learn the basis of LDPC codes)

这是一篇关于adaboost.m1算法的人脸识别源码,识别率挺高的，读入任意人脸库即可运行，已经过测试(This is a source code of face recognition algorithm on adaboost.m1 .code has been tested ,you can read face database to run)

说明：  太阳能光伏电池的matlab/simulink 仿真模型，通过编辑s函数实现，可以对光伏特性进行仿真(Solar photovoltaic cells matlab/simulink simulation model, by editing the s function implementation, you can simulate the characteristics of PV)

生成m序列，通过输入本原多项式的系数来自动实现。(M sequence generated by the primitive polynomial coefficients input automatically.)

in this code random noise is denoise by wavelet and find the parameter for best wavelets

matlab实现的频率空间转换，含完整实验报告(matlab implementation of the frequency space conversion, including a full lab report)

说明：  一、 实验目的 1 熟悉MATLAB环境。 2 掌握MATLAB矩阵输入、运算以及MATLAB的数值运算功能。 3 掌握各种数据的创建‘访问，扩建，缩减。创建一个2*2元胞数组，扩充和缩减 (First, the experimental purpose a familiar MATLAB environment. 2 master MATLAB matrix input, operation and function of MATLAB numerical computing. 3 master data to create a variety of ' access, expansion, reduction. Create a 2* 2 array of cellular expansion and reduction)

合成孔径雷达的的仿真测试算法及其文档，这是西电的牛导所设计的方法，在中电14所的项目中得到验证，并取得不错的效果。点目标的散射原理通过此文档可以得到了解(Synthetic aperture radar simulation testing algorithm and its documentation, which is lead by the Western Electric cow design methods, in the CLP 14 projects have been tested, and achieved good results. Point target scattering theory can be understood through this document)

本程序，包含QPSK，OQPSK的产生过程，I、Q领路信号抽取，他们的频谱，包络情况，经过带通滤波器后的变化，经过非线性放大器后的频谱变化等。是一个很好的学习例程！(This procedure, including QPSK, OQPSK production process, I, Q signal extraction lead the way, their spectrum envelope case, after band-pass filter after the change, through non-linear changes in the spectrum after the amplifier. Is a good learning routines!)