全面的有限元法求解偏微分代码

双向协作通信的中断概率仿真，结果和《Performance Analysis of Two-Hop Relayed Transmissions over Rayleigh Fading Channels》里面的结论完全一样。可以得到三幅图。(Two-way collaborative communication outage probability simulation， results and 《Performance Analysis of Two-Hop Relayed Transmissions over the Rayleigh Fading Channels 》，the conclusion is exactly the same. You can get three in Fig.)

使用一组陀螺实测数据为原始数据，通过时变卡尔曼滤波，得到两组输出滤波图(Use a gyroscope data as raw data, through the time-varying Kalman filtering, the final two output filter figures are obtained)

完整的matlab程序实现数字下变频，ddc_out为主程序。内有详细的注释，易懂。(Complete matlab program digital down conversion. ddc_out is the main program. There are detailed notes, and easy to understand. )

pcnn（脉冲耦合神经网络）工具箱 能实现对灰度图像的分割(pcnn (Pulse Coupled Neural Networks) toolbox to achieve the segmentation of grayscale images)

通信系统中的基带信号处理中的成型滤波器代码，已经通过编译。(Communication system baseband signal processing shaping filter code, has passed the compilation.)

仿真滚动轴承信号，通过不同阈值降噪方法，降噪后的时域图(Simulation of rolling bearing signal, through the different threshold noise reduction method, time-domain figure after noise reduction)

热力学换热器，进行simulink仿真，可以设定材质以及换热系数，同理可改造成冷凝器(Thermodynamic heat exchanger, were simulink simulation, you can set the material and heat transfer coefficient, empathy can be transformed into a condenser)

使用遗传算法对BP网络权值阈值进行优化，再用BP算法训练网络的代码，文本格式的(bp propoganda and genetic algorithm)

说明：  lstm比较火热，matlab2018B已经有相应的工具箱。(LSTM is relatively hot, matlab2018B already has the corresponding toolbox.)

基于SURF特征点匹配进行图像拼接