光谱可调积分球光源的光谱匹配算法研究
Spectral matching algorithm of spectrum-tunable integrating sphere light source

胡友丽袁银麟吴浩宇郑小兵

文摘	基于光谱匹配算法是可调光源产生种类多样光谱分布的必要手段,提出Levenberg-Marquardt算法作为光谱匹配算法。利用峰值位置等间隔均匀分布的理想高斯曲线作为LED发光光谱,借助该设定的一系列曲线仿真模拟目标光谱,实验表明,利用该算法模拟太阳、沙漠、海洋和植被的相对光谱分布,相对光谱差异分别为2.17%、1.76%、2.03%、1.7%。利用实验室现有LED的发光光谱进行验证实验,匹配3种目标光谱的相对差异均小于5%。实验结果表明,Levenberg-Marquardt算法可应用于光谱可调积分球光源的光谱匹配。
其他语种文摘	Spectrum-tunable light source is an integrating sphere source illuminated by a large number of LEDs with different spectral peaks and distributions.The spectral matching algorithm is an essential approach to produce varieties of spectra.Levenberg-Marquardt algorithm was proposed and a series of simulations using Gaussian curves with an equal interval were conducted. The results of simulations show that Levenberg-Marquardt algorithm can make spectrum-tunable source produce solar,dessert,ocean and vegetation spectrum,respectively,the relative spectrum differences are 2.17%,1.76%,2.03%and 1.7%,respectively.The validating experiment for a number of target distributions was performed,and the relative spectral differences are all no more than 5%.The experiment verifies that it is feasible to produce different spectral distributions by using Levenberg-Marquardt algorithm for spectrum-tunable integrating sphere light source.
来源	应用光学 ,2014,35(3):472-477,483 【扩展库】
关键词	辐射度学 ; 光谱可调光源 ; Levenberg-Marquardt算法 ; 相对光谱差异 ; LED
地址	中国科学院安徽光学精密机械研究所, 中国科学院通用光学定标与表征技术重点实验室, 安徽, 合肥, 230031
语种	中文
文献类型	研究性论文
ISSN	1002-2082
学科	物理学;电子技术、通信技术
基金	国家863计划
文献收藏号	CSCD:5148326