A method of correlation analysis for space-based GEO object surveillance

作者：Tang Yi^*; Wu MeiPing; Fu XiaoFeng

来源：Science in China - Series E: Technological Sciences , 2012, 55(6): 1749-1756.

DOI：10.1007/s11431-012-4840-7

• space-based surveillance
• space-based visible
• geosynchronous earth orbit
• too-short arc
• correlation analysis
• initial orbit determination

A method of correlation analysis to determine the correlation between two too-short arcs is presented to monitor geosynchronous earth orbit objects on a space-based surveillance system. The necessary condition for a geosynchronous earth orbit object to be observed by a space-based visible sensor in two successive orbital periods is derived, and the principle for the selection of search fence parameters is proposed. The processing procedure of the correlation analysis for the two too-short arcs as well as two correlation judgment methods is given and the selection of the threshold value for the judgment is analyzed. Finally, a simulation is performed to demonstrate the applicability of the presented methods. Simulation results indicate that a surveillance system can acquire two observation arcs in two successive orbital periods by selecting the suitable search fence parameters, and that the two correlation judgment methods and the selected threshold are valid. The initial orbit of the uncorrelated objects can be determined by two observation arcs, and the accuracy of the initial orbit meets the requirements of re-acquiring the object.

• 出版日期2012-6
• 单位中国人民解放军国防科学技术大学