红外技术, 2018, 40 (7): 712, 网络出版: 2018-08-04
基于梯度投影法的火焰温度测量技术研究
Research on Flame Temperature Measurement Technology Based on Gradient Projection Algorithm
摘要
基于多光谱辐射测温技术,提出一种无需假设发射率模型的梯度投影算法,并对6 种发射率模型进行了仿真计算。结果表明:梯度投影法反演结果误差小于20K,发射率反演结果的趋势与模型吻合。梯度投影法属约束优化算法,与多光谱辐射测温技术结合可避开发射率无法确定需要假设模型的难题,开辟了多光谱辐射测温新的研究思路。
Abstract
Based on the multi-spectral radiation temperature measurement technique, a gradient projection algorithm is proposed without the assumption of the emissivity model. Using this method, six emissivity models were simulated. The simulation results indicate that the inversion results in a relative error of the gradient projection algorithm of less than 20 K, and the trend of the emissivity inversion is consistent with the model. The gradient projection algorithm is a constrained optimization algorithm. Combined with multi-spectral radiation temperature measurement technology, it need not assume the model of emissivity, and provides a new way of measuring multi-spectral radiation temperature.
郭广廓, 王振兴, 崔双龙, 孙晓刚, 邢键. 基于梯度投影法的火焰温度测量技术研究[J]. 红外技术, 2018, 40(7): 712. GUO Guangkuo, WANG Zhenxing, CUI Shuanglong, SUN Xiaogang, XING Jian. Research on Flame Temperature Measurement Technology Based on Gradient Projection Algorithm[J]. Infrared Technology, 2018, 40(7): 712.