Cooperative_Spectrum_Sensing_Using_Random_Matrix_T

Matlab做的俄罗斯方块。做了点修改,解决了有时会不消方块的bug,补全了前面留的功能(键盘自定义设置、储存和载入游戏、高分记录),并在主要代码中加入了注释，便于大家读代码 (Matlab to do the Russian box. Make a point of modification to resolve the sometimes less box bug, complete the front of the remaining functions (keyboard custom settings, storage and loading games, high score record), and in the main code is added to the Notes for U.S. Reading code)

对三维数据进行处理，得到图像的多尺度细节，进行分析处理(trea the three-dimensional data)

Field Ⅱ超声成像代码，可以进行单个孔径成像和合成孔径成像、加权和不加权仿真。(The calculation of point spread functions is done by placing a point in front of the transducer and then sweeping the beam over the point. This gives the point spread function of the imaging system. Field II can make this calculation for a number of points simultaneously and thereby reveal the dynamic focusing properties of the imaging system. A point phantom has been made for this purpose. It consists of a number of point targets placed with a distance of 5 mm starting at 15 mm from the transducer surface)

this program simulates 2D electromagnetic Maxwell equations , by using finite difference time domain method FDTD..and it simulates the perfect matched layer to prevent the reflections that may occure at the boundaries of the problem space

It is a QR decomposition method matlab function for rank revealingm atrix. It is a high rank reveling QR decompostion method.

sar成像RD算法仿真。可以仿真单点目标和多点目标，可以添加方位向相位噪声(sar RD imaging algorithm simulation. You can emulate a single point and multi-point target goal, you can add azimuth phase noise)

This is MATLAB program

信号的仿真，误码率的仿真，互相学习，互相进步(change zhe singal，and find the rate of error)

在SNR=10db，干扰为高斯噪声的条件下进行信号调制类型的自动识别。(SNR = 10db, interfere with the automatic identification of the type of signal modulation under Gaussian noise conditions. )

说明：  加性高斯白噪声下，FQPSK调制的常规OQPSK检测(awgn channel, convention OQPSK demodulationfor FQPSK modulationfor)