Differential-Equations

基于HHT变换的EMD分解程序。通过调用EMD.m的主函数可以解得IMF函数。(HHT in the EMD program, through function call EMD.m can solve for the IMF)

采用仿射变换通过反复循环分别绘制出植物生长模拟图和Sierpinsk三角形分形图案，是matlab的应用(Affine transformation by using repeated cycles of plant growth simulation were drawn map and Sierpinsk triangular fractal pattern, the application is matlab)

Recognition of face images

说明：  FIR数字滤波器的设计:用窗函数法，频率采样法及优化设计法设计FIR滤波器的原理及方法,用MATLAB编程实现FIR数字滤波器的设计(FIR digital filter design: using window function method, frequency sampling method and optimal design of FIR filter design method principles and methods, using MATLAB programming design of FIR digital filters)

说明：  对图像进行二值化处理，是图像预处理的重要步骤内含4种不同的方法(The binary image processing, is an important step in image pre-processing consists of 4 different ways)

face recognition for person identification

说明：  任务：设计一个4×2.5Gbit/s 长距离光纤传输系统，并利用OptiSystem 仿真验证。 要求： 1．采用波分复用技术，波长设置以100GHz 为间隔，频率分别为193.1THz、193.2THz、193.3THz、193.4THz，每个波长传输速率为2.5Gbit/s（NRZ），传输距离为300km。采用常规光纤，光纤损耗系数为0.25dB/km。 2．单通道光发送机最大输出功率为0dBm，光接收机的接收光功率不低于－26dBm，过载点为－10dBm。 3．可以采用EDFA 作为线路放大器，其中EDFA 的输入功率限制在－18～2dBm，最大输出功率20dBm，增益范围为13～25dB，噪声指数4.0dB。(Task: Design a 4 x 2.5 Gbit/s long-distance optical fiber transmission system, and use OptiSystem simulation to verify. Requirement: 1. Using wavelength division multiplexing technology, the wavelength is set at 100GHz intervals, with frequencies of 193.1 THz, 193.2 THz, 193.3 THz and 193.4 THz, respectively. The transmission rate of each wavelength is 2.5 Gbit/s (NRZ), and the transmission distance is 300 km. The loss coefficient of conventional optical fibers is 0.25dB/km. 2. The maximum output power of a single-channel optical transmitter is 0 dBm, and the receiving power of an optical receiver is not less than -26 dBm, and the overload point is -10 dBm. 3. EDFA can be used as line amplifier, where the input power of EDFA is limited to - 18-2dBm, the maximum output power is 20dBm, the gain range is 13-25dB, and the noise index is 4.0dB.)

变分不等式求解算法之一，投影算法是将变分不等式的解进行投影，然后进行迭代。(One of the variational inequality solution algorithm, the projection method for variational inequality solution to the projection, and then iterate)

全新的，自创的m文件，容易理解，容易使用的线性归一化的源代码 (All new,original m-files created by own, easy to understand, easy to use normalization of source code )

模糊控制仿真模型，在simulink 里已成功试验，主要用来控制自动导航。(Fuzzy control simulation model has been successfully tested in simulink where mainly used to control the automatic navigation.)