LZcode

lte vs wimax the way lte differs from the wimmax

由于实际信道中的多径和阴影效应，单个认知用户频谱感知的性能受到影响，因此需要靠不同用户间的协同频谱感知来对抗多径和阴影效应。本设计要求在文中采用一种协作机制，即两用户进行协作频谱感知，提高主用户的检测率，减少检测时间，并且得到捷变增益。要求给出仿真结果。(As the actual channel of the multi-path and shadow effect, a single user of spectrum sensing of cognitive performance are affected, it needs to depend on collaboration between different users of spectrum sensing to combat multipath and shadow effects. The design requirements in the text using a cooperation mechanism, namely, two user collaborative spectrum sensing, to improve the detection rate of the primary users, reducing detection time, and get agility gain. Required to give simulation results.)

Takagi-Sugeno fuzzy models are based on the concept of fuzzy coding of information and operating with fuzzy sets instead of numbers

判断一个样本服从那种分布的例程,包含正态分布、指数分布等(judge which distribution did a sample follows)

矩形孔菲涅尔衍射图像得计算程序，读者可以修改相关参数，以观察不同形式得菲涅尔衍射图像。(Rectangular aperture Fresnel diffraction image obtained calculation program, readers can modify the relevant parameters to observe the different forms have Fresnel diffraction image.)

认知无线电 matlab检测方针 能量检测 毕业设计 (Cognitive radio energy detection matlab test graduation policy)

说明：  有频带方差和谱熵法。自己实现加窗分帧。里面设计傅里叶变换还有矩阵的运算。(speech endpoint detection. frequence_diff and pushang.)

Matlab的RLS算法的语音去噪程序》》》》》(Matlab' s speech denoising procedure RLS algorithm)

扩展卡尔曼滤波程序，matlab 仿真。(EKF simulation)

MPSK和QAM仿真，AWGN信道，误码率与Es/N0的关系和理论关系式的对比。(MPSK or MQAM modulated signal s relationship between BER and Es/N0 in AWGN channel,compared with the ideal function given by theory.)