该程序是通过6s辐射校正模型生成查找表，以便进行气溶胶反演
;　　该程序参数设置较为简单，如果要详细的参数，请自行设置
;　　改进方法：1、读取每一个影像的角度信息建立查找表，这样精度更高
;　　　　　　 2、利用IDL直接调用Fortran语言的6S源程序，并行生成查找表，速度提高20倍左右
;　　　　　　 3、将所有参数都设置好，缩小步长，构建一个庞大的查找表，构建神经网络，一劳永逸(The program generates look-up table through 6S radiometric correction model, so as to conduct aerosol inversion.
The program parameter settings are relatively simple, if you want detailed parameters, please set it up by yourself.
The improvement methods are as follows: 1. Read the angle information of each image and create a look-up table, so that the accuracy is higher.
2, use IDL to invoke the 6S source program of Fortran language directly, and generate lookup table in parallel, and the speed is increased by 20 times.
3, set up all parameters, reduce the step length, build a huge look-up table, and build a neural network. Once and for all.)