中文说明：利用matlab GUI实现的串口编程例子，有信道编码，调制，信道估计等，包括轨道机动仿真、初轨计算,PLS部分最小二乘工具箱,基于多相结构的信道化接收机，该函数用来计算任意函数的一阶偏导数(数值方法)。
English Description：
Serial port programming using MATLAB GUI example with channel coding, modulation, channel estimation, including orbital maneuver simulation, preliminary orbit calculation, PLS partial least squares Toolbox channel receiver based on Polyphase structure, the function used to calculate arbitrary first-order partial derivatives of a function (method).