This paper analyzes the importance of digital technology for the aviation equipment industry chain. Flight test as a bridge connecting the development and service of equipment, the construction of digital flight test mode through business modeling plays an important role in improving the quality and efficiency of flight test, as well as the progress and quality of equipment development. BOM definition technology is used to define the business model of the whole life cycle of flight test. Based on the flight test business XBOM architecture, describe the structure, mapping relationship, and attribute information of each BOM based on the association relationship between various departments of the test flight business. Taking flight test requirement management BOM as an example, a detailed design was carried out based on a single data source. Final list three application effects of flight test business XBOM.
With frequent occurrence of earthquake disaster, earthquake monitoring becomes increasingly concerned. Global
observing by optical remote sensing is an emerging technology widely applied in monitoring temporal changes of
topography in earthquake. It provides advantages of large width of observation, fast data acquisition and high time
effectiveness. This technique takes advantages of accurate image registration of pre-seismic and post-seismic to spot
surface rupture zones. Therefore, the spatial alignment accuracy of multi temporal images becomes a problem that hinder
the earthquake monitoring. Considering the adverse impact of different imaging angle, camera lens distortion and other
factors on image registration, a new approach of high accurate registration based on constraining positioning consistency
in rational function model (RFM) is proposed. Ziyuan3 images of Yutian country in Xinjiang are used to perform the
earthquake monitoring experiment. After applying the proposed method, registration accuracy of pre-seismic and postseismic
images is better than 0.6 pixel; surface rupture zones caused by earthquake are acquired promptly.
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