LANDSAR SOFTWARE TESTING METHOD FOR LU TAN-1 SAR STANDARD PRODUCT GENERATION IN NATURAL RESOURCE MONITORING

Abstract

LandSAR software is first developed by the InSAR group of the Land Satellite Remote Sensing Application Center (LASAC) in 2015, which is designed for Chinese differential interferometric SAR satellite constellation application. It is used for interferometric applications such as DEM and deformation product production. After Lu Tan-1 satellites were launched in 2022, LandSAR entered the systematical testing phase. In this paper, the testing flow of LandSAR was introduced. In the systematical testing phase, we carried out unit testing method (UTM), integrated testing method (ITM), system testing method (STM), and acceptance testing method (ATM), verifying the function and performance of the 177 modules at all levels. We use a multi-factor testing flow (MFTF) to test the software. Until now, about 80 modules of the software have been distributed to 53 users from multi-province nationwide for trial. By testing, the software has been continuously optimized. In order to ensure the quality of data processing results, after repeated systematical testing and acceptance testing, we have formed the key steps of InSAR and DInSAR data standardization processing flow with ideal data results. Next, we will rely on the standard processes mentioned to declare SAR data processing standards and carry out data business production of LuTan-1 satellites. The standardization will be helpful for various industries to carry out natural resource monitoring and supervision work.