An Improved Method on Associating Ascending and Descending Passes of Observations

摘要：

　　Association of ascending and descending passes (A-D passes) in uncorrelated tracks (UCTs) is an efficient way to find out a new object and to generate its elaborate orbit sequence gradually.This paper proposes an improved method for A-D passes association problem.This method takes a three-level association structure;extensive filtering is performed in level 1 with time interval and orbital parameters a, i, Ω as decision variables;elaborate filtering is performed in level 2 with time offset and orbital parameters Ω, λ as decision variables;validating by orbit determination (OD) is performed in level 3 with OD residual as decision variable.The corresponding filtering thresholds depend mainly on sensor coverage in longitude, time interval of A-D passes, initial orbit precision, measurement error, model error, etc.Simulation analysis indicates that the method has satisfactory aspects in association accuracy, stability and efficiency.

关键词： Space object UCTs Association Correlation

作者: Yuanxin Li Jian Huang

作者单位: Beijing Institute of Tracking and Telecommunications Technology, Beijing 100094, China

会议类型: 国际会议

会议名称: The 27th Conference of Spacecraft TT&C Technology in China(第27届中国飞行器测控学术会议)

会议地点: 广州

会议语种:英文

页码: 465-475

在线出版日期: 2014-11-09（万方平台首次上网日期，不代表论文的发表时间）