3970962based_MATLAB_OFDM_system_simulation

说明：  空时编码的基于Matlab的应用迫零算法的译码仿真(Space-time coding applications based on Matlab zero forcing decoding algorithm simulation)

美股实时指数 在副图窗口，方便操作与美元有关的相关产品(US stock index for MT4)

Rotates an image by the angle degrees in the % CCW direction. Degrees may be any number. % The function will put degrees in the range 0 % to 360 degrees and then into a range of -45 to 45 % degrees after performing elementary 90 degree rotations.(Rotates an image by the angle degrees in the % CCW direction. Degrees may be any number. % The function will put degrees in the range 0 % to 360 degrees and then into a range of-45 to 45 % degrees after performing elementary 90 degree rotations.)

在matlab开发环境下实现对信号的经典功率谱估计(Classical Spectrum)

说明：  ％ 生成三个正弦函数并计算其幅度谱 属于MATLAB基础性的应用( Generate three sine function and calculate its amplitude spectrum belongs to the basic MATLAB Application)

Reading ECG record from the MITBIH database

DIIVINE 目前最先进的无参考图像质量评价软件(DIIVINE the most advanced no reference image quality assessment algorithm)

粗糙集属性约简相关论文，感觉不错，用来分享一下(Rough set attribute reduction related papers, I feel good, to share)

常见的基于人类视觉特性的图像增强算法由于是同时完成动态范围压缩和对比度增强,导致增强图像的整体对比度不高、边缘部分效果不佳.通过分析人类视觉系统的全局和局部自适应调节原理及人眼视网膜神经节细胞感受野的传输特性,提出一种仿生图像增强法.为适应人类视觉系统对光强的主观感觉特性,对图像作全局亮度对数变换 并利用人眼的主观亮度感觉与实际光强的对数呈局部线性关系的特性,采用视网膜神经元感受野三高斯 模型来调整亮度图像的局部对比度 最后利用线性变换恢复图像的彩色信息.实验结果表明,该算法的增强效果良好,特别是对于图像边界处,既能很好地增强边缘对比,又可有效地提升区域亮度对比和亮度梯度信息. (image enchancement)

为了提高小波分析方法在混沌去噪中的自适应能力，对不同尺度下的小波信号设定调节因子，根据混沌序列 关联维的大小确定最优阈值。为了提高寻优效率，采用遗传算法全局自适应搜索最优阈值。利用该方法对Lorenz混沌时 间序列进行了去噪分析，结果表明所提方法是非常有效的。(For the purpose of improving adaptive performance of chaotic signals de-noising with wavelet transform，a floating parameter is set to regulate the threshold of wavelet signal on different scales according to the correlation dimension of chaotic time series．The genetic algorithm is helpful tO obtain global optimum thresholds and tO reduce much time wasted by the adaptive searching computation．De-noising for Chaotic time series generated by Lorenz system is simulated to corn— pare with other methods，and the results showed that the proposed method iS effective)