摘要
主要讨论和分析了基于LED的特定光谱拟合算法,该算法以非线性最小二乘和高斯函数模型为基础,通过光谱拟合确定LED的种类及其所需的驱动电流值。在仿真实验中,对植物光合作用中叶绿素吸收光谱400~700nm波段进行拟合,采用等间隔和非等间隔峰值波长的LED进行拟合,结果发现LED的数目越多拟合的精度越高,非等间隔方法对光谱波峰或波谷位置的识别能力强,拟合精度较高,为植物生长灯的工程设计提供理论依据。
This paper mainly discusses and analyzes the LED spectroscopic fitting algorithm. It is based on the nonlinear least squares and Gauss function model to fit spectrum, so as to determine the types of LED and drive current to a desired value, and provide a theoretical basis for the engineering design for plant growth lamp. In the simulation experiment, fitting the plant photosynthesis chlorophyll absorption spectrum of 400 -700nm band with equal interval and unequal interval peak wavelength LED, the results found that the more the LED number, the fitting precision is higher. Non-equal interval method identifies the spectral peak or trough location better and has a high precision.
出处
《照明工程学报》
2015年第4期111-114,共4页
China Illuminating Engineering Journal
关键词
LED
光谱拟合
植物生长灯
高斯分布函数
LED
spectral fitting
plant growth lamp
Gauss distribution function
