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fourier拟谱方法，是一种很不错的傅里叶数学算法，希望有用(fourier pseudospectral method is a very good Fourier mathematical algorithms seek to help)

说明：  里面有8PSK，GMSK的matlab源程序，贡献出来了(I was interested in the theory for 8PSK and came across this m-file written in 1999. It requires 2 function calls (graymapPSK and grayunmapPSK) which I have included and must be uncommented(single comments only) and loaded into your workspace. Remove the function calls from this m-file after you load into your workspace. It seems to work well and give valid results for BPSK and QPSK but I have a question about the setup for 8PSK and the solution for Pseint where Pse=Pseint. Also, the Gray coding seems different than what I m used to. Some of you more theoretical minded may have some insight into the theory behind how Pseint was determined and comment. I don t have the communications toolbox-blockset and was wondering how it compared with Matlab s example simulation of 8PSK with Gray coding (in Simulink?) Each run takes about a minute and the loop iterations are shown in the command window. A numerical example of a satellite link is shown using uncoded QPSK )

计算空间几何距离的MATLAB计算机算法(Spatial geometric distance calculation algorithm MATLAB computer)

topology optim 88 line code

matlab的基础知识 适合刚接触该软件的使用者(matlab basic knowledge for users of the software刚接触)

nothing System will automatically delete the directory of debug and release, so please do not put files on these two directory.

说明：  一个简单的SPM传播模型仿真，可以手动进行校正(SPM model)

用于信号调制的函数，可对自然码和格雷码的性能进行比较。(Function for signal modulation of natural code and gray code)

编程中有的版本可能没有该功能函数，直接拷贝到工具箱里即可使用(Programming without the function of some versions may, directly copy to use can be a tool box )

这是一个基于空时分组编码的MIMO_OFDM通信系统的仿真设计。此系统包括QPSK调制解调，IFFT调制，空时编解码，基于训练符号的信道估计等通信模块。 (This is a space-time block coding based on the MIMO_OFDM communication system simulation design. This system consists of QPSK modulation and demodulation, IFFT modulation, space-time coding and decoding, based on training symbols such as communication channel estimation module.)