针对激光雷达散射截面的测量精度，指出测量中存在的背景散射问题。
To improve the measurement accuracy of laser radar cross section (LRCS), the background scattering existing in the measurement is pointed out.
当宇宙微波背景辐射通过星系团时，气体将其中光线散射开来，其方式类似于地球大气层散射星光而使一些星星貌似闪烁。
These gases scatter light from the cosmic microwave background radiation as it passes through the clusters, similar to the way Earth's atmosphere can scatter starlight, making some stars twinkle.
但对研究人员感兴趣的是在红色背景下散射的黄色斑点。
But the interesting part to researchers is the scattering of yellow flecks in the red background.
近红外光谱不但包含着物质成分信息，而且这些信息完全掩盖在众多复杂背景当中（包括光散射、背景噪声以及背景漂移）。
With NIR spectra, the analytical information is contained in small spectral variations and usually dominated by the features such as light scattering, background noise and baseline drift.
漫散屏，柔光屏散射光线的介质，用在摄影中使背景柔和。
A medium that scatters light, used in photography to soften shadows.
详细分析了地面杂散背景的辐射和散射特征。
The IR radiation and diffusion characteristic of ground background a re analyzed in detail.
试提出一种高荧光及强背景噪声情况下表面增强拉曼散射光谱的提取方法。
A spectrum signals detection method has been designed for surface enhanced Raman scattering (SERS) under high fluorescence and background noise.
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.
能量为E的粒子被某一势阱散射，如果推求总散射截面常常易忽视物理背景。
Particles of energy E are scattered by a certain potential well. In finding the total scattering cross section, the physical background are often ignored.
由于强烈的工程应用背景，电大尺寸目标散射特性的计算越来越成为人们关注的焦点。
The problem of electromagnetic scattering from large-scale target has been being the focus of public for long time because of its strong engineering application requirement.
本文分析了从姿态稳定度、像面振动、大气散射与吸收、大气湍流以及海表背景对于成像质量影响。
In this paper, the influence of the imaging quality is studied from attitude inaccuracy, vibration, scattering and absorbing of the atmosphere, turbulence of the atmosphere and the sea surface.
我们讨论了宇宙热电子对宇宙微波背景的康普顿散射效应。
We discussed the inverse Compton effect of the hot electrons of the universe in scattering off the microwave background photons.
我们讨论了宇宙热电子对宇宙微波背景的康普顿散射效应。
We discussed the inverse Compton effect of the hot electrons of the universe in scattering off the microwave background photons.
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