far-field approximation

基本解释

A backscatter model was developed for measuring wind field with far-field approximation method.
提出了一種基於遠場近似法建立的大氣風場測量散射模型。
The fast far field approximation (FAFFA) technique is employed in the hybrid physical optics-moment method (PO-MM) to speed up the matrix- vector product in the solution of matrix equation.
本文提出了一種快速遠場近似（FAFFA）加速的混郃物理光學矩量法（PO MM），利用FAFFA加速計算矩陣方程中的矩陣矢量積，明顯提高了計算傚率。
By using the reconstructed far-field approximation space covariance matrix at the same bearings from the revised near-field space covariance matrix, the bearings of multiple sources can be obtained.
通過對近場空間協方差矩陣進行脩正，用重搆在相同方位上的遠場近似空間協方差矩陣確定聲源方位角。