摘要
本文在分析光谱解调中心波长检测的基础上,从最小二乘法基本原理出发进行曲线拟合,结合实验数据实例,构造一个最佳通用多项式光谱拟合模型,再利用得到的函数关系实现对乙炔吸收光谱中各中心波长的曲线拟合与仿真,降低中心波长飘移,提高检测精度。
We perform curve fitting with the principle of least squares, which is based on the analysis of the wavelength detection of spectrum interrogation center. We construct an optimal generic polynomial spectrum fitting model with experimental data. This model is further applied to the curve fitting and simulation of individual central wavelength of acetylene absorption spectrum. Experimental results show that this model can reduce the drift of central wavelength and increase the accuracy of detection.
出处
《山东科学》
CAS
2011年第1期77-80,96,共5页
Shandong Science
关键词
波长解调
曲线拟合
最小二乘法
wavelength interrogation
curve fitting
least squares method
