sphere

A scheme of FDTD near-to far-zone transformation for scattering from an object over the curved earth is presented in this paper.

由光滑球形地面上垂直电偶极子产生地波场的求解公式及互易原理，本文导出了采用F～方法处理视距外海上复杂目标散射问题时的近一远场外推公式。

The one end of the quartz fiber is pulled into the awl and terminal surface,making spherical terminal surface after adopting the special auxiliary method and adding the special material on it.

实验中采用大芯径石英光纤,把石英光纤的一端熔融拉锥并研磨成锥形端面,采用特殊助剂方法在其上面加入特殊的物质后研制成球形端面,并对所研制的石英光纤球形端面输出光功率进行测试。