channel

本程序是MATLAb 编程环境开发，可以进行基本的NMF分解，比传统的分解方法有更大改进(This program is MATLAb programming environment and development, can be the basic NMF decomposition, than the more traditional methods to improve the decomposition)

Matlab的创始人 C. Moler编写，网上鲜见。 诚乃大家之作，为英文版，内附70多个M文件实例解释，对于编码的品质提高很有好处(Matlab' s founder C. Moler preparation, on-line rare. We shall be sincere is for English, included more than 70 instances of M documents to explain, for improving the quality of coding is very good for)

显示了存在的相关关系的4PSK码的性能接收天线。检查出使用性能更高的跟踪从5.4.5节中给出的代码表。空时格码的代码如何从比较的角度来看STBC的编码鲁棒性的相关性存在(shows the performance of 4PSK codes in the presence of correlation between receive antennas. Check out the performance using higher trace codes from the tables given in Section. How do STTC codes compare with STBC codes from the point of view of robustness in the presence of correlation?)

VanderPoll oscilator simulation

凯撒窗的产生，包括高通，低通和带通，以及窗的长度和系数(Kaiser window production, including high-pass, low pass and band-pass, and the window length and coefficients)

matlab求灰色关联度，并对关联度进行排序(matlab seek the gray relational grade, and the associated degree of sorting)

求信号功率谱密度的简单程序，并将结构保存成TXT文档(Demand signal power spectral density of simple procedures, and to save the structure into a TXT document)

本文主要是描述的DDC的matlab功能，从输入的信号经过1/4fs搬频，然后半带抽取，再到混频，最后到分数倍的抽取，再经过成形滤波器输出。(digital down convention)

说明：  块状和梳状导频下的OFDM信道估计LMMSELSSVDLMMSE-OFDMoncha，(OFDM channel estimation lmmselsvdlmmse OFDM oncha with block and comb pilots)

说明：  matlab使用详解的书籍源码，对学习matlab非常有用！！(This is the source code of the book---Matlab shiyong xiangjie，it is very useful for matlab learners！！)