s_4ASK

这是自由空间光通信实现OOK、PPM、DPPM调制解调并计算在高斯信道中的误码率的Matlab程序。(This is a free-space optical communications to achieve OOK, PPM, DPPM modulation and demodulation in the Gaussian channel and calculate the bit error rate in Matlab.)

说明：  基于压缩感知的信道估计算法 包括omp等算法(Channel estimation algorithms based on compressed sensing include OMP and other algorithms)

说明：  Data-Sheet_03-11-2017

基于OFDM的单脉冲雷达回波信号极化散射矩阵提取的仿真程序，可以根据角误差提取任意角度的目标PSM。(Extracted emulation program based on OFDM single-pulse radar echo signal polarization scattering matrix can be extracted according to the angle error at any angle of the goal of the PSM.)

多路复用写的一个可收发数据的串口应用程序(Write a multiplexer can send and receive serial data applications)

正交频分复用系统中信号的调制与解调，我们用傅里叶反变换和变换来实现(Orthogonal frequency division multiplexing system signal modulation and demodulation, and we use the inverse Fourier transform to achieve transform)

The Viterbi algorithm

说明：  ethercat通信协议栈及其源代码，可用于嵌入式开发及ethercat主站搭建。(EtherCAT communication protocol stack and its source code)

本人用石川法求齿轮的啮合刚度，完整版的程序，里面可以运行啮合刚度图(Meshing Stiffness of Gears Calculated by Ishikawa Method)

103转modbus协议C程序，支持多个485端口并能够配置(103 turn modbus protocol C program, more than 485 ports and supports the ability to configure)