Correction of spacecraft autonomousnavigation system using terrain image processing and analysis

摘要

Structures of on-board automous navigation systems that spacecraft coordinates estimation by analysis of on-board camera data without receiving extra data from earth ground stations or other external sources are considered. Various approaches to correct the automous navigation system (ANS) of a spacecraft based on comparison of current images (CI) of the earth's surface obtained on board in on-board computer memory are sonsidered. Recommendations for increasing the efficiency o f image processing (from the point of view of algorithm speed) are suggested. Results concerning potential accuracy of such systems are cited. Copyright