发光学报, 2018, 39 (4): 555, 网络出版: 2018-05-07   

基于LED峰值的太阳光谱合成方法

Solar Spectrum Synthesis Based on LED Peak
王凌云 1,2,*王立辉 1苏拾 1,2张健 1,2张国玉 1,2
作者单位
1 长春理工大学 光电工程学院, 吉林 长春130022
2 吉林省光电测控仪器工程技术研究中心, 吉林 长春130022
摘要
为了利用不同波段LED快速准确地模拟太阳光谱,基于LED的光谱合成原理,提出了一种利用LED光谱峰值波长处的数据合成太阳光谱的方法,简化了太阳光谱的拟合过程。首先,建立所有LED峰值波长处的函数方程组,利用约束最小二乘法确定各波段的拟合参数。进而,通过3组等间隔的LED光谱数据组对该方法进行了仿真分析,间隔40,30,20 nm的LED合成光谱与目标光谱相关系数对应为0.902,0.935,0.977,并对合成光谱失真处进行了分析和修正。最后,根据所选LED的实际光谱对太阳光谱进行了仿真分析。仿真结果表明:合成光谱与太阳光谱最大失配误差为4%,达到AM1.5的A级标准,满足LED太阳模拟器光谱匹配要求。
Abstract
In order to use different band LED for fast and accurate simulation of the solar spectrum,based on the LED spectral synthesis principle, a way to synthesize the solar spectrum by using the data at their peak wavelength of LED spectrum was put forward , the fitting process of solar spectrum was simplified. First, the function equations for all LEDs at their peak wavelength were established, the constraint least-squares method was used to determine the fitting parameters of each band. And then, the method was simulated by three sets of equal spaced LED spectral data sets, the correlation coefficients of the LED synthesis spectra with the target spectra at the interval of 40, 30, 20 nm were 0.902, 0.935, 0.977. Finally, The solar spectrum was simulated according to the actual spectrum of the selected LED. The simulation results show that the maximum mismatch error between the synthesized spectrum and the solar spectrum is 4%, achieving the standard of AM1.5 A level and meeting the LED solar simulator spectral matching requirements.
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王凌云, 王立辉, 苏拾, 张健, 张国玉. 基于LED峰值的太阳光谱合成方法[J]. 发光学报, 2018, 39(4): 555. WANG Ling-yun, WANG Li-hui, SU Shi, ZHANG Jian, ZHANG Guo-yu. Solar Spectrum Synthesis Based on LED Peak[J]. Chinese Journal of Luminescence, 2018, 39(4): 555.

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