FSOUCP

recurrent neural network

四阶龙格库塔法，在解常微分方程时进行数值求解时调用使用(The fourth-order Runge-Kutta method is used to solve ordinary differential equations numerically.)

MATLAB常用算法程序集，功能比较齐全。(MATLAB commonly used algorithm for assembly, function relatively complete.)

1. 基于simulink搭建一个QPSK发送链路，QPSK调制信号经过了瑞利衰落信道，观察信号经过衰落前后的星座图，观察信道特性。仿真参数：信源比特速率为500kbps，多径相对时延为[0 4e-06 8e-06 1.2e-05]秒，相对平均功率为[0 -3 -6 -9]dB，最大多普勒频移为200Hz。(1. Based on simulink structures, QPSK sent a link, the Rayleigh fading channel after the QPSK modulation signal, were observed before and after signal after the decline of constellation diagram, observation channel characteristic. Simulation parameters: the source is 500 KBPS bit rate, relative multipath time delay of [0 8 e 4 e- 06-06 e-05] 1.2 seconds, the relative average power is [0-3-6-9] dB, most of the doppler frequency shift is 200 hz.)

说明：  针对小流域设计洪水计算中，采用推理公式求解洪峰流量Qm及汇流时间τ的方法繁琐，查算精度较低等问题，提出用牛顿迭代法求解，该方法较原图解试算法收敛快，迭代次数少，计算速度快，精度可靠。计算实例表明，用简单迭代法与牛顿迭代法计算设计洪峰流量，其结果与图解试算法完全一致。()

MATLAB编程技巧，包含如何编写高速率和整洁的matlab程序，全英文的，值得参考。(MATLAB programming skills, including how to write high-speed and clean matlab program in English, it is worth.)

decision tree example

matlab code for 4-ask modulation

MATLAB里的simulink的dspbuilder设计的图像边缘检测，可直接运行，并可通过matlab转化到quartus中并下载到FPGA运行(Edge Detection of MATLAB simulink where dspbuilder design can be directly run, and transformed by matlab to quartus and downloaded to the FPGA run)

emd工具箱，用经验模态分解时一定要安装的工具箱，解压后添加进toolbox里，setpath后，记得更新工具箱，就可以使用了，我是用来分解信号进行信号处理的(emd toolbox with a time of empirical mode decomposition must install kit, unpacked add toolbox, the post setpath, remember to update the toolbox, you can use, and I was used to decompose the signal for signal processing)