2) far field and near field
远场与近场
3) far-field approximation
远场近似
1.
Model of atmospheric backscatter on wind measurements using far-field approximation method;
基于远场近似法建立的大气风场测量散射模型
5) near-to-far-field transformation
近场-远场变换
1.
In the paper,the three-dimensional standard parabolic equation(SPE) and near-to-far-field transformation are deduced,and the radar cross section(RCS) of a perfectly conducting sphere is calculated.
文章推导了三维标准的抛物线方程及相应的近场-远场变换理论,并计算了理想导体球的雷达散射截面;数值结果表明抛物线方程算法的引入,在保证一定精度的前提下,大大提高了计算效率,节约了内存。
6) and transformation from near to near/far field
近场远场转换
补充资料：远水救不得近火
1.见"远水不救近火"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条