GPS数字中频信号仿真 吴倩倩

此类对GPS时间进行了封装，支持时间运算和时间格式转换，供大家参考！(Such a package on the GPS time, support time and time format conversion operation, for your reference!)

v2v信道建模，参数依据论文《Deep reinforcement learning based resource allocation in V2V communications》(V2V channel modelling, parameters are based on published paper Deep reinforcement learning based resource allocation in V2V communications)

说明：  捷联惯导系统传递对准MATLAB程序，跟踪且时间延迟。(SINS Transfer Alignment MATLAB procedures, tracking and time delay.)

gps伪随机码生成与信号捕获程序&数据,matlab仿真(GPS pseudo random code generation and signal acquisition program & data, matlab simulation)

读取.hdr文件，将其编码为rgbm格式（.png四通道）(convert from hdr to rgbm)

说明：  利用Duhamel求解elcentro地震波作用下的地震加速度反应谱(Computation of seismic response spectrum)

这个程序用蒙特卡洛法计算了单小区用户利用D2D通信解码转发中继选择情况下的误码率(This program calculates the bit error rate of single cell users using D2D communication decode and forward relay selection)

说明：  4. 试说明卷积编解码的工作原理： (1) 使用Simulink仿真卷积编码，并用Viterbi译码的方法进行解码，其中的编码、译码全部是自己编写代码(S-Function方式)，不是调用Simulink的已有编码、译码函数。 (2) 请在加性白高斯噪声信道中，画出比特信噪比与误码率的关系曲线。(4. Try to explain the working principle of convolutional codec: (1) Simulink was used to simulate convolutional coding, and Viterbi decoding method was used for decoding. The coding and decoding were all written by oneself (s-function method), rather than calling the existing coding and decoding functions of Simulink. (2) in the additive white gaussian noise channel, please draw the curve of the relationship between bit signal-to-noise ratio and bit error rate.)

说明：  灰度图像分割，三维大津法或三维最大类间方差法(3D Maximum Between Cluster Variance)

了解瑞雷面波的特点，并有PPT进行说明，里面程序已经详细注释，便于读者看懂(Understand the characteristics of Rayleigh wave, and have a PPT, inside program has detailed notes, convenient for readers to understand)