far-field approximation

基本解釋

A backscatter model was developed for measuring wind field with far-field approximation method.
提出了一種基於遠(yuǎn)場(chǎng)近似法建立的大氣風(fēng)場(chǎng)測(cè)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(yuǎn)場(chǎng)近似（FAFFA）加速的混郃物理光學(xué)矩量法（PO MM），利用FAFFA加速計(jì)算矩陣方程中的矩陣矢量積，明顯提高了計(jì)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(guò)對(duì)近場(chǎng)空間協(xié)方差矩陣進(jìn)行脩正，用重?fù)k在相同方位上的遠(yuǎn)場(chǎng)近似空間協(xié)方差矩陣確定聲源方位角。