These calculation are finished withsome different conditions, including of different orbit altitude, vary divergence angle oftransmitter, sea area changed, and different under-water target depths.
计算并讨论了不同轨道高度、不同发散角大小、不同海域、不同水下深度光信号的时间扩展分布。
参考来源 - 光在大气和海水信道的传输性能研究About divergence angle, the paper discusses the testing method specially.
针对光束发散角的测量,文中专门进行了详细讨论。
参考来源 - 激光引信发射机组件测试系统研发·2,447,543篇论文数据，部分数据来源于NoteExpress
The divergence Angle of light beam was measured with the method of CCD imaging and computed by second moment method.
通过CCD成像方法对准直后的光束发散角进行了测量，利用二阶矩算法计算出光束发散角。
Another important application of diffraction theory is the study of the far field divergence Angle of a collimated light beam.
衍射理论的另一个重要应用就是研究准直光束的远场发散角。
The effects of swirl number of primary swirler and radial swirler, area ratio and sleeve divergence angle on the cold flow field of double swirl air intake were investigated.
试验研究了主、径向涡流器旋流数、面积比、套筒扩张角等参数对双旋流进气装置冷态流场的影响。
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