微光电视工作于极低照度或恶劣环境下，输出信噪比明显降低，目标完全淹没在背景噪声中，使探测率大大下降。
Low light level TV is usually operated under extremely low illuminance or other adverse circumstances and the output SNR decreased to such a level that possibility of detection is greatly reduced.
计算了到达探测器靶面上目标和背景的光谱辐照度。
The target and background irradiance that can arrive at the detector's target plane were computed.
结果是目标上的照度、后向散射光和信号光在光电阴极面上的照度增加，目标与背景图像的对比度降低；
The results demonstrate that the irradiance on object, backscattering and signal irradiance on photo-cathode are increased and the image contrast between object and background is decreased.
对炸点测量系统探测器靶面上的辐照度信噪比、目标在探测器靶面上的辐照度以及实验数据进行分析。
The detector's target plane irradiance SNR of the point of burst measuring system, the target irradiance on the target plane and experiment data were explored.
图像结构信息，如图像的边缘、纹理等，是图像特征的一种，结构信息不易受照度变化的影响，同时是高分辨率遥感图像中的人造目标特性的主要表现形式。
Image structure information, such as edges and texture, is robust to the illumination change and is the main characteristic of man-made object in high resolution remote sensing imagery.
在高斯随机面元统计散射模型的基础上，提出了目标表面为随机粗糙平板面的空间目标散射太阳光产生地面光照度的散射计算模型。
Then based on the Gauss random facets statistical scattering physical model, the calculation model for Gauss random surface of spatial objects that is made from planes is derived.
产品简介：微光夜视观察镜，是供夜间低照度条件下对目标进行观察用的电子光学仪器。
PRODUCT INTRODUCTION: Nght vision viewers are electronic optical instruments used for viewing under low light level conditions at night .
产品简介：微光夜视观察镜，是供夜间低照度条件下对目标进行观察用的电子光学仪器。
PRODUCT INTRODUCTION: Nght vision viewers are electronic optical instruments used for viewing under low light level conditions at night .
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