本文件是基于MATLAB的二维匀速运动的目标跟踪-This document is based on MATLAB two-dimensional uniform motion tracking

单自由度系统对初始条件和简谐激励相应 由单自由度的运动方程和初始条件得到二阶非齐次常微分方程，它的解有对应的齐次方程的通解和非齐次方程的特接构成。-Single degree of freedom system to initial conditions and the corresponding harmonic excitation Special general solution of the equations of motion and initial conditions b