Korea Aerospace Research Institute (KARI) performs study about GPS signal argumentation system and installs augmentation system test-bed in jeju international airport. This test-bed always observes satellite navigation signal and includes several signal monitoring algorithm for detect satellite navigation signal’s abnormality. During study, these signal monitoring algorithms will update based on result of process of obtained navigation signal via testbed. For algorithm update, testbed needs to change S/W structure. This paper explains why need to change S/W structure for algorithm update and result of structure change.

Keywords: KIMS, augmentation system, software design