The nonlinear differential equations are solved using finite difference method. 用有限差分法求解非线性微分方程组。
In this paper the Fourier finite-difference technique is used for migration of phased-array ground-penetrating radar real PGPR data in 2D media. 本文利用傅里叶有限差分法对相控阵探地雷达样机采集的实测数据进行偏移归位。