The algorithm of radiance spectra and transmittance spectra in measured region was proposed, and the method of retrieving gas concentrations with NLLS fitting algorithm was also proposed.
提出了辐射光谱、测量区域内大气透过率谱的算法模型，以及应用非线性最小二乘拟合算法实现气体浓度反演的方法。
In active infrared remote sensing measurements, the infrared absorption caused by the presence of trace gases in atmosphere is related to the transmittance spectra in different infrared wave band.
在主动式红外遥感测量中，大气中痕量气体的红外吸收与不同红外波段的透过率光谱有关。
The transmittance of the glass coated TiO2 was high and its transmissivity compared with common glass in visible spectra was over 72%.
该镀膜玻璃的透光性较好，在可见光范围内它相对于普通玻璃来说透光率在72%以上。
The weight functions were obtained by analyzing target spectra distribution and background radiance, transmittance computed by MODTRAN.
通过分析目标谱分布，并运用MODTRAN模拟计算背景程辐射和整层大气透过率，得到对应不同目标的权函数。
The weight functions were obtained by analyzing target spectra distribution and background radiance, transmittance computed by MODTRAN.
通过分析目标谱分布，并运用MODTRAN模拟计算背景程辐射和整层大气透过率，得到对应不同目标的权函数。
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