DS

利用时域有限差分法模拟二维光子晶体光纤中光的传播(The use of FDTD simulation of two-dimensional photonic crystal fiber-optic transmission of light)

matlab 控制系统 源代码 所有的源代码都有，很全(MATLAB and Control System)

This file contains MATLAB introduction.

：自准直仪是比较常用的测角仪器，其原理是检测激光形成的图像光斑的中心之间的距离，通过 ) 个中 心的横纵坐标差来计算物体偏离的角度 ’ 利用迭代阈值和图像分割等方法将光斑图像进行预处理，然后将得到 的图像分别用重心法、圆拟合法和匹配法进行中心定位，并最终进行偏离角度的测定 ’ 文中介绍了所使用的几 种方法，并进行了仿真比较，结果表明，圆拟合法更有优势 ’ (: Is more commonly used since the collimator angle measuring instrument, the principle is to detect the distance between the center of the laser spot image formed by a) a horizontal and vertical coordinates of the center differential to calculate the deviation angle of the object ' iterative threshold and image method of segmentation, such as the spot image preprocessing, and then the resulting image with the center of gravity method, respectively, round contemplated legitimate and matching method center position, and eventually for the Determination of the deviation angle of ' paper describes the use of several methods, and simulation comparison, the results show that the circle fitting more advantageous' )

铱星系统的空中接口采用QPSK调制，发送滤波器采用平方根升余弦滤波器，该程序是铱星系统的发送信号仿真模型。(Iridium air interface using QPSK modulation, transmit filter using square root raised cosine filter, the program is sending signals Iridium system simulation model.)

基于自相关或四阶累计的music和esprit算法的DOA估计（一维）(Based on autocorrelation or fourth-order cumulant of music and esprit algorithm for estimating DOA (one-dimensional))

Examples for actionbar

SIMULINK仿真模块 EKF算法扩展卡尔曼滤波 有仿真模块有对应s函数模块算法(simulink extended kalman filter)

实现了图像的加水印，去噪，加噪声等功能，BP神经网络用于函数拟合与模式识别，LDPC码的完整的编译码。( Realize image watermarking, de-noising, plus noise and other functions, BP neural network function fitting and pattern recognition, Complete codec LDPC code.)

利用matlab编制灰色预测模型，通过少量的、不完全的信息，建立灰色微分预测模型，对事物发展规律作出模糊性的长期描述（模糊预测领域中理论、方法较为完善的预测学分支）。(Using matlab preparation gray prediction model, a small amount of incomplete information, the establishment of the gray differential prediction model fuzziness long description (fuzzy forecast field theory of the law of development of things, the more perfect branch predictions).)