激光雷达系统的作用距离由下列因素决定：脉冲能量、脉冲宽度、光束发散角、大气衰减、目标反射率和接收机灵敏度等。
The operating distance of a laser radar system is determined on pulse energy, pulse width, beam divergence angular, atmosphere attenuation, target reflection, receiver sensitivity and so on.
同时，随着观测点在尾迹中的位置距目标船的接近，气泡密度不断增大，反射率也随之增强。
Besides, the bubble density and reflectance increased with the wake observation position approaching the target ship.
本文介绍了反光板（合作目标）反射率测量仪的研制。
This paper introduces the development study of Reflector board(cooperative target) reflectivity measuring instrument.
一些对颜色重现要求较高的应用领域需要获取目标表面上各点的光谱反射率。
In some high_precision color reproduction applications, there is a need to obtain spectral reflectance of each point on the objects surface.
通常非相干的常规天气雷达的应用仅仅是通过雷达回波强度的探测来提供天气目标物的位置和其反射率的信息。
Usually, conventional incoherent weather radar is used to provide only the information on the position of a weather target and its radar reflectivity by detecting echo intensity.
在外场用已知半球反射率的靶板作为标准靶板，反演测定目标靶板激光雷达散射截面和半球反射率。
Using a plate whose hemisphere reflectivity is known as a standard plate, the lidar scattering cross section (LRCS) and hemisphere reflectivity of a target plate are measured inversely.
在低反射率区域中，利用目标的形状、拓扑关系和目标与背景的灰度分布完成桥梁兴趣区检测。
By analyzing targets' space distribution, shape and gray characteristic in low-reflection area, the Regions Of Interested (ROI) are detected.
利用地面反射率分布图像将遥感数字图像中弱的大气信息与强的地面目标信息分离，生成仅仅包含大气信息的大气程辐射遥感图像。
Atmospheric path radiation remote sensing images are based on values of atmospheric path radiation in remote sensing data dependent only on the state of atmosphere but not ground conditions.
利用地面反射率分布图像将遥感数字图像中弱的大气信息与强的地面目标信息分离，生成仅仅包含大气信息的大气程辐射遥感图像。
Atmospheric path radiation remote sensing images are based on values of atmospheric path radiation in remote sensing data dependent only on the state of atmosphere but not ground conditions.
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