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pid fun in matlab codes

说明：  用Matlab实现线性调频信号仿真的程序,观察时域波形和幅频特性(use Matlab to achieve the linear frequency modulation signal simulation program, observe the time domain waveform and amplitude-frequency characteristics)

采用离散余弦变换DCT，通过MATLAB实现数字水印（包括水印的嵌入和盲提取）。( Uses discrete cosine transformation DCT, realizes the digital watermark through MATLAB (including watermark inserting and blind extraction). )

返回电力系统规划中用matpower计算一次潮流后得到的雅可比矩阵.(Return to power system planning using matpower after the tide once the Jacobian matrix.)

power system stability with and without PSS yu power system stability book example

单径或多径瑞利衰落信道仿真，主同步信号PSS在时域上的相关仿真，MIMO OFDM matlab仿真。( Single path or multipath Rayleigh fading channel simulation, PSS primary synchronization signal in the time domain simulation related, MIMO OFDM matlab simulation.)

PR方程编写，密度根求解；逸度系数求解，混合规则改进(PR equation writing, density root solving; The fuzziness coefficient is solved and the mixing rule is improved)

说明：  一种应用于信号分选的统计直方图分选法，在工程实践具有重要应用价值。(A statistical histogram sorting method applied to signal sorting has important application value in engineering practice.)

用正交调制方法实现模拟调制，包括AM,DSB,SSB,LSB,FM,AM-FM等，实现后，显示时域波形和功率谱密度(Orthogonal modulation method used for analog modulation, including AM, DSB, SSB, LSB, FM, AM-FM, etc., we can show the time-domain waveform and power spectral density)

Face Detection In this program you will choose a photo and program will detect faces in this photo