fft-experiment

本代码是单相正弦电压锁相环程序，用于根据单相正弦电压生成其相位角度信息，包括：正交处理、坐标变换、PI运算、积分运算、取模运算等步骤。(This code is a single-phase sinusoidal voltages phase-locked loop program for generating the phase angle information based on single-phase sinusoidal voltage, comprising: an orthogonal processing, coordinate conversion, PI operation, integral operation, the modulo operation and other steps.)

DNN identifier with sigmoidal functions

标准单点定位，利用观测文件和导航文件进行标准单点定位(Standard single point positioning, the use of observation and navigation files document standard single point positioning)

很快的求出各点对之间的最短距离，并且记录路径。(Quickly find out the point to the shortest distance between, and record path.)

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。(This book logically arranged from beginning to end examples describing the content of complete and relatively independent of each chapter it is a simple MATLAB reference books, both for beginners, but also to high-level MATLAB users.)

Scott Hudson, WSU Tri-Cities 1D electromagnetic finite-difference time-domain (FDTD) program. Assumes Ey and Hz field components propagating in the x direction. Fields, permittivity, permeability, and conductivity are functions of x. Try changing the value of "profile".(Scott Hudson, WSU Tri-Cities 1D electromagnetic finite-difference time-domain (FDTD) program. Assumes Ey and Hz field components propagating in the x direction. Fields, permittivity, permeability, and conductivity are functions of x. Try changing the value of " profile" .)

四阵元理想情况下情况下，来波方向为30度时，各阵元波形( Smart Antenna beam-forming)

A great book from Mustafa Ergen about wireless communications in LTE, WiMaX and mobile broadband with the title Mobile Boradband including WiMaX and LTE .

北京航空航天大学出版社出版，江志红编著的,深入浅出数字信号处理,的pdf文件扫描版，及书中Matlab程序(Beijing University of Aeronautics and Astronautics Press, Jiang Zhihong edited version layman pdf file scanning digital signal processing, and the book Matlab procedures)

说明：  matlab代码，轴承特征提取，包括rms、最大幅值、峰值因子、绝对平均值、平均值、峭度、脉冲因子、裕度因子、能量，小波包、经典模态分解等特征(Matlab code, bearing feature extraction, including rms, maximum amplitude, crest factor, absolute mean, mean, kurtosis, pulse factor, margin factor, energy, etc.)