chengxiangsuanfa

lzw编码，gif图片编码，lena图的lzw可变长编解码(lzw encoding the gif picture coding, lena graph lzw variable length code decoding)

Clasification with feature extraction for two classes

说明：  关于数学信号处理及其MATLAB实现。。适合初学者

matlab编写，能够实现局部子空间鉴别分析，含主方法和测试代码，能直接运行(matlab prepared, can achieve local subspace discriminant analysis, including the main methods and test code that can be run directly)

gui controls M-file shows how to use the GUIDE in MATLAB for example the pop-up menu. edit text, ect.,

一本讲解matlab库类的好书 讲解很详细 适合初学者使用(a book for MFC kulei)

说明：  这是基于matlab的单用户注水算法的源程序，(This is a matlab-based algorithm for single-user water source,)

EMD 算法，消除信号趋势项，可以作为信号预处理的部分(Part of the EMD algorithm to eliminate the signal trend term, can serve as a signal preprocessing)

部分激光经过外腔反馈回激光器，产生扰动，并调节反馈光能量 实现混沌光输出(Part of the external cavity laser is fed back through the laser, produces disturbances, feedback and adjust the light output of the light energy of Chaos)

说明：  要：分析和研究了授权用户和认知用户共享频谱的一种算法的性能。 针对阴影效应或信道深衰落时，单用户频谱感知算法无法识别是频带未被 使用还是信道处于深衰落的情况，在频谱感知功率控制算法上进行了改进， 以克服这种算法的不足。改进后的算法能有效地控制认知用户的发射功率， 避免对授权用户产生有害的干扰。仿真结果表明改(To: analysis and research of the authorized users to share spectrum users and a cognitive performance of the algorithm. For the shadow effect or deep fading channel, the single-user spectrum sensing algorithm can not identify a band or a channel has not been used in the case of deep fading, the spectrum sensing power control algorithm has been improved on, to overcome the deficiencies of this method. The improved algorithm can effectively control the cognitive user' s transmit power, to avoid harmful interference with authorized users. Simulation results show that the change)