1) mean squared fluctuation
均方起伏
2) Root-mean-square surface height
高度起伏均方根
1.
The results show that in observation of the same azimuth,the scattering intensity of cone surface with the observed angle of the first increase after the increase of decreases and in certain observation azimuth,the scattering intensity with Root-mean-square surface height decreases and with the observation azimuth was symmetrical distribution.
计算了圆锥表面在高度起伏均方根不同情况下对1。
3) mean fluctuation
平均起伏
4) bearing fluctuation
方位起伏
1.
Way of identifying target based on covariance of bearing fluctuation;
基于方位起伏方差的目标识别方法
2.
Experiments have shown that target bearing fluctuation exists in underwater target echo.
水下目标的特征提取是声自导鱼雷目标识别和分类的基础,本文从水下目标的空间域信息的特征出发,讨论了分裂波束双通道自导系统目标方位提取方法,研究了基于目标方位扩展的水下目标方位起伏特征。
5) direction fluctuation
方向起伏
6) light intensity undulation variance
光强起伏方差
1.
The paper defines a physical parameter—the improving ratio of light intensity undulation variance,and its relation to such parameters as emission aperture,spread distance,aperture space and beam quality,etc.
大气光通信中,对光束质量的描述十分繁琐,本文定义了一个物理参数——光强起伏方差改善比,并通过公式推导,将它与发射孔径、传播距离、孔径间距、光束质量等参数建立了直接联系。
补充资料：高度
①高低的程度；从地面或基准面向上到某处的距离；从物体的底部到顶端的距离：飞行的～丨 这座山的～是四千二百米。②程度很高的：～的劳动热情丨～评价他的业绩丨这个问题应该受到～重视。
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