Simms Jean M, An Xinliang, Brittelle Mack S, Ramesh Varun, Ghandhi Jaal B, Sanders Scott T
Appl Opt. 2015 May 10;54(14):4403-10. doi: 10.1364/AO.54.004403.
A simultaneous optimization method is proposed for absorption spectroscopy postprocessing. This method is particularly useful for thermometry measurements based on congested spectra, as commonly encountered in combustion applications of H2O absorption spectroscopy. A comparison test demonstrated that the simultaneous optimization method had greater accuracy, greater precision, and was more user-independent than the common step-wise postprocessing method previously used by the authors. The simultaneous optimization method was also used to process experimental data from an environmental chamber and a constant volume combustion chamber, producing results with errors on the order of only 1%.
提出了一种用于吸收光谱后处理的同步优化方法。该方法对于基于密集光谱的温度测量特别有用，这在H2O吸收光谱的燃烧应用中经常遇到。对比测试表明，与作者之前使用的普通逐步后处理方法相比，同步优化方法具有更高的准确性、更高的精度，并且更不依赖用户。同步优化方法还用于处理来自环境舱和定容燃烧室的实验数据，产生的结果误差仅在1%左右。
