Time-Difference-Method

simulink广泛应用于各种控制过程，此文件是学习matlab中simulink使用的快速入门文档(This is a pdf file for fast-using simulink of matlab.)

用MATLAB仿真工具实现Floyd算法，求任意两端间的最短路径(MATLAB simulation tool used to achieve Floyd algorithm, for any shortest path between two ends)

按UTM投影（或高斯投影）方式，将星下点轨迹图投影到地图坐标上 (By UTM projection (or Gaussian projection) mode, the ground track diagram projected onto the map coordinates)

基于matlab软件实现等距离离散化为粗糙集约简前准备(matlab Equidistance discretization)

It s a code for implemetation of total variation minimization algorithm

数字基带传输系统的MATLAB仿真实现,基带编码采用1B1T的编码方式，讨论了这种方式下系统的误码率及功率等。(Digital baseband transmission system MATLAB Simulation, base-band encoding the encoding used 1B1T discussed this way the bit error rate, and power.)

 利用fft()进行快速傅立叶变换，得到频谱，画出正弦函数及其频谱  找出频谱中使得Y轴取最大值时的估计频率记为ft  加入白噪声，绘出信噪比和均方误差的关系曲线 ( using fft () for fast Fourier transformation, spectrum, to draw the sine function and its spectrum  find the spectrum makes the Y-axis maximum value when the estimated frequency is denoted by ft  adding white noise, SNR plot and mean square error curve)

使用matlab编写的经纬高、东北天数据和地心坐标数据之间的转换函数文件，包含了东北天坐标系的定义说明文件以及相关的转换公式。 三个函数的调用文件名：ECEFtoENV，ECEFtoLBH，LBHtoECEF。使用说明见函数的说明。(Prepared using matlab high latitude and longitude, northeast-day data and geocentric coordinate conversion functions between data file that contains the definition of the coordinate system Northeast day documentation and related conversion formulas. Three function calls filename: ECEFtoENV, ECEFtoLBH, LBHtoECEF. See the instructions for use function.)

ray-level co-occurrence matrix

I have provided the code for watermarking code in spatial domain and check difference between original and corrupted image.