forward-difference method

基本解釋

Good results also verify the feasibility of forward modeling with two-dimensional finite difference time domain method (2D-FDTD).
良好的結(jié)果也驗證了二維時域有限差分法（2D-FDTD）正演模擬的可行性。
In the forward step, the eikonal equation was solved by finite-difference method. Raypaths were determined in the minus gradient direction of travel time.
正演采用快速的有限差分求解程函方程的方法求取旅行時，利用旅行時的負(fù)梯度方向求取射線路徑。
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Thus, we obtained characteristics of radar images by experiments in different environment, and implemented forward modeling using two-dimension finite difference time domain method.
因此，通過不同環(huán)境的試驗得到雷達(dá)圖譜特征，并利用二維時域有限差分法對其進(jìn)行正演模擬。