普遍采用光谱辐照度(spectral irradiance)来定量代表光谱分布。光谱辐照度的单位是w／(㎡•nm)，物理意义为包含某一波长电磁辐射的一纳米波长范围内的太阳辐照度。
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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.
描述了一种新的紫外和真空紫外光谱辐照度的定标方法。
A new spectral irradiance calibration method in the UV and VUV region was described.
因此建立一个高精度的光谱辐照度和光谱辐亮度标准是非常必要的。
The Gauss model of point target image irradiance and the calculation model of the infrared radiation power are established.
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