为了得到宽光谱波段范围内光谱可调多色温多星等能量分布的星模拟器光源, 并且达到星模拟器光源的自动标定, 本文从辐度学和色度学出发, 基于最小二乘法, 在400 nm～900 nm光谱范围内, 采用双积分球法, 以白光LED光源为基底光源, 多种不同峰值波长的窄带LED光源对目标光谱进行补偿以实现色温3 900 K～6 500 K连续可调, 星等-1 MV～+6 MV, 1 MV可调的自动标定型多光谱星模拟器光源系统.最后, 在实验室完成了光源系统以及与相应的光学系统形成星模拟器并对其进行装配调试, 所测得的光谱分布和星等值与理论模拟结果以及标准目视星等值进行了对比.星模拟器输出光谱点模拟误差和星等误差分别在±10%和±10%范围内, 满足现阶段星模拟器的使用要求.同时在后期控制电路稳定的情况下, 星等误差可保证在±5%范围内.

In order to obtain the star simulator sources system of the adjustable spectrum with more color temperatures and more magnitudes and it can be calibrated automatically in a wide range of spectral bands. Embarking from the amplitude and colorimetry, This paper realize the automatic calibrating multispectral light star simulator system which the color temperature is continuous adjustable from 3 900 K to 6 500 K and the magnitudes is 1 MV adjustable in -1 MV~+6 MV with double integrating spheres in 400 nm~900 nm spectral range,The light system is based on the least squares method and the white LED are treated as the main body, a variety of different peak wavelength and narrow-band spectrum LEDs to compensate the objective spectrum.Finally,the source system and star simulator are completed and debugged in the laboratory,and the results are compared with the theoretical simulation values and standard visual magnitudes. The results show that the star simulator spectrum simulation error and magnitude error are within the range of ±10% and ±10% respectively and meet the stage star sensor needs, At the same time ,In ensuring the stability of the control circuit,magnitude error can be within the range of ±5%.