RadISpeC program code (.m files and GUI for Matlab IDE)

Radiation: Interface for Matlab Spectroscopy Calculations (RadISpeC) is a program that use HITRAN/HITEMP data to generate Line-by-Line (LBL) spectra at a wanted spectral resolution and environment. These data can be used with Discrete Transfer Methods (DTM), Ray Tracing (RT) etc. solvers to estimate high precision radiation in heated flow problems. It was created as a part of the article "Experimental and theoretical evaluation of spectral radiative transfer in high-pressure flames" by Westly et. al. from 2019 (under review by Journal atm). This article also show how well the program is at simulating heated gas flows for CO2, H2O and CO compared to experimental results. The program contain all setups that was used for the article to use free of charge, as long as the program and article is cited. All functions have descriptions that explain how to use them and contain call methods. If a more detailed description of theory is wanted, check the RadISpeC documentation PDF inside the RadISpeC folder. This PDF also contain the same information as the function descriptions. The program work fully with the Matlab IDE for 2017b. (Checked with 2019b and updated)<br> If the user want to use the created GUI, the Matlab version has to be 2017b or newer. This lies in the function UIFigure that is used, which after an update from 2017a to 2017b made it uncompatible with older Matlab versions. It is possible to request an ".exe" with a standalone version of the program that use the GUI by contacting Anders Ivarsson from DTU MEK <br>辐射光谱计算Matlab界面工具（RadISpeC）是一款基于HITRAN/HITEMP数据库，可在指定光谱分辨率与环境参数下生成逐线（Line-by-Line, LBL）光谱的程序。所生成的光谱数据可配合离散传递法（Discrete Transfer Methods, DTM）、光线追踪（Ray Tracing, RT）等求解器，用于估算加热流动问题中的高精度辐射场。 本工具由Westly等人于2019年发表的论文《高压火焰光谱辐射传递的实验与理论评估》（*Experimental and theoretical evaluation of spectral radiative transfer in high-pressure flames*，目前正由《Journal atm》期刊审稿）衍生而来。该论文同时验证了本工具针对二氧化碳（CO₂）、水蒸气（H₂O）与一氧化碳（CO）的加热气体流动模拟效果，并与实验结果进行了对比。 本工具包含论文中使用的全部配置，可免费使用，但需在使用时引用本工具与相关论文。所有函数均附带使用说明与调用方法详解。若需获取更详细的理论说明，请查阅RadISpeC工具文件夹内的RadISpeC用户手册PDF文档，该PDF文档同样包含函数说明中的全部内容。 本工具完全兼容Matlab 2017b及以上版本的集成开发环境（Integrated Development Environment, IDE），经2019b版本测试并完成适配更新。 若需使用内置图形用户界面（Graphical User Interface, GUI），则Matlab版本需为2017b及以上。这是因为工具使用的UIFigure函数在2017a至2017b的版本更新后，不再兼容旧版Matlab环境。用户可通过联系丹麦技术大学机械工程系（DTU MEK）的Anders Ivarsson，申请带GUI的单机版.exe安装程序。