advanced_theory_of_comm_arshammostaani_project3_q

This will take the DCT of an image Coefficient matrix calculated first and after multiplied with image matrix 4X4.very efficient code.

说明：  常规调幅，也叫有载波双边带调制，按求包络的方法解调(Conventional AM, also known as there are bilateral with carrier modulation, in accordance with the method for envelope demodulation)

说明：  数字图像处理--同态滤波--matlab程序(Digital image processing- homomorphic filtering- matlab program)

主要对扩展卡尔曼滤波（EKF）、无迹卡尔曼滤波（UKF）及改进无迹卡尔曼滤波（MAUKF）算法进行研究，研究了三种算法的基本原理和各自的特点。其中扩展卡尔曼滤波器是将卡尔曼滤波器局部线性化，其算法简单，计算量小，适用于弱非线性、高斯环境。无迹卡尔曼滤波器是用一系列确定样本来逼近状态的后验概率密度。改进无迹卡尔曼滤波算法在UKF的基础上引入衰减因子。(Improved Kalman filtering algorithm)

说明：  系统采用LC滤波，利用PR控制器对逆变器输出电压进行闭环控制。PR控制器在逆变器控制中应用很多。PR控制能够在谐振频率处提供无穷大的增益，因而对谐振频率处的电流信号实现无静差跟踪，并且易于实现，可有效降低系统成本。(The system uses LC filter and PR controller to control the output voltage of inverter. PR controller is widely used in inverter control. PR control can provide infinite gain at the resonant frequency, so the current signal at the resonant frequency can be tracked without static error, which is easy to implement and can effectively reduce the system cost.)

根据论文中的算法，读者给运用matlab将程序写了出来，将一个24位真彩图像进行加密，再运用真确的解钥对图像进行解密！(According to papers in the algorithm, readers to use matlab program to write out a 24-bit true color image is encrypted, and then use the solution of the authenticity of image decryption key!)

基于进化算法的多目标优化,以matlab程式所寫成,請大家參考參考(evolutionary algorithm based on the multi-objective optimization to written Matlab program, please refer to reference)

利用特别功能找出完美的符合。非常有用的程序。。(this is a very useful tool to find hht which is hilbert trans,)

系统辨识实验解答，利用相关分析法辨识脉冲响应，包括题目、M文件程序以及完整的实验报告。(System identification experiments to answer, using correlation analysis, identification of impulse response, including the subject, M documentation procedures, and complete lab report.)

说明：  cost207 的信道模型的matlab实现(cost207 the channel model to achieve the Matlab)