hpfilter

现代通信系统第二版的源代码（非常全面）学习通信编程的必备。(The source code for the second edition of the modern communication systems)

This is a code of the precise integration method.

说明：  deep learning 的两篇学习资料deep learning 的两篇学习资料(paper of deep learning)

matlab实现的无约束修正Newton法，内含一维搜索进退法和0.618法，验证函数选择的booth函数，实验结果符合。(matlab achieve unconstrained correction Newton method, contains one-dimensional search method retreat and 0.618 method, verify booth function function selected experimental results.)

说明：  扩频与解扩仿真实验，用matlab可以完全实现，图形也正确(The simulation experiment of spread spectrum and despreading can be realized by MATLAB, and the graph is correct)

本书基于MATLAB 5.2版，提供了使用MATLAB的实践性指导。MATLAB已成为适合多学科、多种工作平台的功能强大、界面友好、语言自然并且开放性强的大型优秀应用软件，同时也已成为国内外高等院校高等数学、数值分析、数字信号处理、自动控制理论以及工程应用等课程的基本教学工具。本书按逻辑编排，自始至终用实例描述；内容完整且每章相对独立；是一本简明的MATLAB参考书，既适用于初学者，也适用于高级MATLAB用户。对MATLAB与FORTRAN、C等语言结合的描述更是所有MATLAB书籍中少有的一大特色。 本书适合作为理工科高等院校研究生、本科生教学用书，也可作为广大科研工程技术人员的自学用书。(MATLAB users. Of MATLAB and FORTRAN, C and other languages with a description of all MATLAB books is a major feature of the few. This book is suitable as a science and engineering colleges and universities graduate, undergraduate teaching books, but also the majority of scientific research and engineering and technical personnel as self-study book.)

matlab test code for sampling frequency

滑模变结构控制仿真实例，为基础的滑模变结构入门程序，建议初学者参考使用(Sliding mode variable structure control simulation example, based on sliding mode variable structure entry procedures, the proposed reference to the use of beginners)

DETREND removes the trend from data

欧洲中心ERA-interim再分析资料处理(ECMWF ERA-interim reanalyse data )