OFDM_tutorial

说明：  详细给出floyd、dijkstra算法，并给出具体例子以及如何看运行结果。所有程序均通过真实测试。(Details are given floyd, dijkstra algorithm, and gives specific examples and how to look at the results. Through all the procedures are the real test.)

对于QPSK性能分析的源码,最后给除2种信道下的误码率比较图(QPSK performance analysis for the source, the final addition to the two types of channel bit error rate plan)

shell. Le presse papier (copier-coller) se trouve dans le menu edit . Enfin, pour accéder au logiciel Matlab, vous pouvez utiliser le menu démarrer ou taper simplement la commande matlab dans un shell

各种各样的不同代码源打包，都是经过运行的，绝对可以使用。(A variety of different source code packages are run through, and absolutely can be used.)

The spectrum sensing problem has gained new aspects with cognitive radio and opportunistic spectrum access concepts. It is one of the most challenging issues in cognitive radio systems. In this paper, a survey of spectrum sensing methodologies for cognitive radio is presented. Various aspects of spectrum sensing problem are studied from a cognitive radio perspective and multi-dimensional spectrum sensing concept is introduced. Challenges associated with spectrum sensing are given and enabling spectrum sensing methods are reviewed. The paper explains the cooperative sensing concept and its various forms. External sensing algorithms and other alternative sensing methods are discussed. Furthermore, statistical modeling of network traffic and utilization of these models for prediction of primary user behavior is studied. Finally, sensing features of some current wireless standards are given.

用matlab编写的一个时钟程序，能够以钟表的形式准确反映系统时间。(A Matlab clock program which can accurately reflect the system in the form of clock.)

Builds a scale space to contain the sift features generated by a number of object images that were scale-normalized.

说明：  这是衰减子程序，用来进行信号的衰减的自程序(This is the attenuation subroutine, used to signal attenuation from the procedures)

simulation of optimal control

预测控制里面MAC算法的实现，简单明了，欢迎交流(programming for prediction control)