AM-MODULATION

matlab时频分析配套源码第13章的程序，请大家共享(Matlab time-frequency analysis supporting source Chapter 13 procedures, please share)

《精通simulink系统仿真与控制》，学习simulink不可多得的好书，已经很难找了(" Proficient simulink simulation and control" , learning simulink rare books, has been hard to find)

OFDM通信方式，包括QAM调制，IFFT以及加入循环码前缀(OFDM modulation)

说明：  matlab 实现dbscan 这是一种基于密度的聚类分析算法，可以发现任意形状的簇，可以发现噪声点。(Realization of DBSCAN with MATLAB This is a density based clustering analysis algorithm, which can find clusters of arbitrary shape and noise points.)

学习C的常用工具书，里面包含了常用的函数，您一定用的着的！，希望对您有所帮助！(if you want to study C language well ,you should use this book to help you!)

说明：  模拟干涉图像的程序，matlab编写，很实用，对正在学习的朋友有帮助。(Interference image of the process simulation, matlab written, very practical, and helpful friends are learning.)

make descrite selection from a set of values with different probabilities and produce a sample array

能量谱分析计算,包括广义互相关函数GCC时延估计，是路径规划的实用方法。( Energy spectrum analysis and calculation, Including the generalized cross-correlation function GCC time delay estimation, Is a practical method of path planning.)

This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. (This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. )

说明：  这是用matlab语言编写的数据处理的小程序，很好用的(using Matlab is the language of small data processing procedures, with the good)