Big Data Oriented Insar Software Testing Method for Landsar Used in Chinese Satellite Lutan-L Applications

LandSAR software, which is developed by Land Satellite Remote Sensing Application Center (LASAC), is designed for Chinese differential interferometric SAR satellite constellation application. It is used for interferometric applications such as DEM and deformation product producing. In this paper, the testing method of LandSAR was introduced. Lifecycle of LandSAR has been divided into three parts, including prototype, systematical development and systematical test. Firstly, we developed the prototype of LandSAR using the rapid prototype model. White box testing (WBT) was applied for the software test. Secondly, LandSAR was developed systematically, and the black box testing (BBT) method and WBT were combined to test the software. Finally, we performed the systematical test strategy and the BBT method played a significant role. We have tested 177 modules using a multi-dimensional analysis method (MDAM). About 150 modules have been modified according to the test results. Right now we have distributed 80 modules of LandSAR to 48 users for wider BBT and applications. LandSAR is a useful interferometric SAR processing software for terrain and deformation measurements.