CRLB of Initial State Estimation for Boost Phase Object Based on 8-State Gravity Turn Model Using Space-Based Observations

摘要：

This paper deducted the specific form of Cramer Rao lower bound (CRLB) for the initial state estim ation for the boost phase object based on the 8-state gravity turn model using space-based observations and illustrated the computation process with examples. In addition, the geometrical comprehension of the Fisher information matrix (FIM) of the single observation is presented, and how a targets launch point and shoot direction effects the CRLB based on the LOS measurements from sensor located on a geosynchronous earth orbit (GEO) satellite is investigated. Since shoot direction is of particular importance in early-phase warning, it is defined and computationally examined. Sim ulations are em ployed to testify the CRLB derivations and facilitate the understanding of the theoretical construct. The paper concludes with a summary of results and future work.

关键词： 8-State gravity turn model Space-based observations Shoot direction Initial state estimation Fisher information matrix Cramer-Rao lower bound

作者: Yan Zhao Dongyun Yi Yongqiang Li Qian Zhang

作者单位: School of Science,National University of Defense Technology,Changsha, China School of Law, Victoria University,Melboume, Australia Beijing Aerospace Command and Control Center,Beijing, China

会议类型: 国际会议

会议名称: 2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)

会议地点: 大连

会议语种:英文

页码: 781-789

在线出版日期: 2010-07-05（万方平台首次上网日期，不代表论文的发表时间）