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说明：  详细的介绍了matlab的基础应用，方便易学 ，希望能给大家带来方便。(Matlab in detail the basis of the application, to facilitate easy to learn, we hope that they will be convenient.)

说明：  详细讲解EM（期望最大化）算法，并使用混合高斯分布示例编程实现解答(Explain EM (expectation maximization) algorithm in detail, and use mixed Gaussian distribution example programming to realize the solution)

于慧敏信号与系统第二版第七章部分习题的matlab代码... (Number in Huimin Xin Chapter VII of the system part of the second edition of Exercise matlab code ...)

频谱估计 讲的比较详细 里面的ppt文件还有解释 值得一看(spectrum estimation)

说明：  可设置函数曲线图视角的用户界面，用matlab编写的具体实例可以设置函数曲线的用户自定义的设置(Function curve can be set to the user interface perspective )

3d reconstruction based glass cubes

参考Matlab提供的模块建立简化的三相锁相环的仿真模型，只保留必要的步骤，如abc-dqz只计算Vq，去除频率反馈模块和自动参数调整模块等。 建立单相锁相环的计算模型  简化单相锁相环的系统结构，保留必要的PI控制器等模块  验证并讨论输入信号频率在45-65Hz变化时设计的锁相环的动静态性能  仿真并分析三相输入信号包含谐波、不平衡和直流偏移时锁相环的锁相结果(Reference Matlab provides three-phase PLL module to establish a simplified simulation model, retaining only the necessary steps, such as abc-dqz counting only Vq, remove frequency feedback module and automatic parameter adjustment module.  simulation and analysis of the three-phase input signal contains harmonics, unbalance and DC offset PLL phase-locked Results)

a self- embedding block wise fragile watermarking scheme with tamper detection and content recovery capability. The proposed scheme embeds the shuffled extensive ten bit Recovery data and two bit Authentication data of the image block into the least significant bits (LSB) of its corresponding mapping block.The integrity of a test block is decided by comparing 2×2 non overlapping block of the test block with its corresponding mapping block. Experimental results show that the suggested scheme outperforms conventional self recovery fragile watermarking algorithms in alteration detection as well as in tamper recovery of the image.

fcyj mk oujfgyj iuty piutyou oiui9-u9

给原始的语音信号加上一个高频余弦噪声，频率为5kHz。画出加噪后的语音信号时域和频谱图(To the original speech signal and the last high frequency cosine noise, frequency of 5kHz. Speech signal time domain and frequency spectrum and noise after the draw)