A wind tunnel test method to realize store separation measurement based on SFM algorithm

It is reasonable to investigate the procedure of store separation from the its carrier to determine whether it is an absolutely safe or not, which employs optical measurement method to implement free store separation wind tunnel test, when the CTS test method is inapplicable subjecting to test condition. In this paper, such issue is fully solved by utilizing industrial cameras with top-speed frame rate and high resolution and processing those frames to realize SFM(Structure From Motion)algorithm. After detecting and matching the markers in the frame pair, it is effective to calculate the barycentre of the model by triangulation principle. When it is put all those frame calculating results together, the store falling trajectory during the subsonic wind tunnel test is captured and estimated.