Fourier

this code is about different types of digital communications

用matlab编的游戏，还真没想到matlab能编出游戏来(Game series with matlab, matlab really did not expect to be able to compile the game)

说明：  《MATLAB 7.0从入门到精通》一书的配套程序——第4章的程序。(&quot MATLAB 7.0 from the entry to the master,&quot a book supporting the program- Chapter 4 of the program.)

使用主成分分析对高维数据进行降维，程序包含了降维的过程和结果(Using PCA to reduct dimensionality for data. the program contains the process and solution.)

用现代谱估计法中的AR模型对信号进行功率谱估计(The power spectrum of the signal is estimated by the AR model of the modern spectral estimation method)

Matlab progam to implement legall 3/5 filter

研究模型，可以作为仿真的模型，在上面可以进行(Research model)

PWM斩波器的设计模型与SIMULINK实现(PWM chopper design model implementation and SIMULINK)

CurveLab is a collection of Matlab and C++ programs for the Fast Discrete Curvelet Transform in two and three dimensions. For the 2d curvelet transform, the software package includes two distinct implementations: the wrapping-based transform and the transform using unequally-spaced fast Fourier trans- form (USFFT). Both variants are based on the Curvelet transform as described in ‘New Tight Frames of Curvelets and Optimal Representations of Objects with Piecewise C2Sin- gularities’, Comm. Pure Appl. Math. 57 (2004) 219-266. The implementation is also discussed in detail in ‘Fast Discrete Curvelet Transforms’, Multiscale Model. Simul. 5 (2006), no. 3, 861-899. We advise users to become familiar with these references. The two implementations diff er by the choice of spatial grid used to translate curvelets at each scale and angle.(CurveLab is a collection of Matlab and C++ programs for the Fast Discrete Curvelet Transform in two and three dimensions. For the 2d curvelet transform, the software package includes two distinct implementations: the wrapping-based transform and the transform using unequally-spaced fast Fourier trans- form (USFFT). Both variants are based on the Curvelet transform as described in ' New Tight Frames of Curvelets and Optimal Representations of Objects with Piecewise C2Sin-gularities' , Comm. Pure Appl. Math. 57 (2004) 219-266. The implementation is also discussed in detail in ' Fast Discrete Curvelet Transforms' , Multiscale Model. Simul. 5 (2006), no. 3, 861-899. We advise users to become familiar with these references. The two implementations differ by the choice of spatial grid used to translate curvelets at each scale and angle.)

可以提取出图像中的红色信息，坐标空间变换（直角坐标系到极坐标系），彩色模型变换（RGB到HSI）(Red information can be extracted in the image coordinate space transform (Cartesian coordinates to polar coordinates), color model transformation (RGB to HSI))