Optimal guidance laws with uncertain time-of-flight

作     者：Rusnak, I 

作者机构：RAFAEL 88 IL-31021 Haifa Israel 

出 版 物：《IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS》 (IEEE Trans. Aerosp. Electron. Syst.)

年 卷 期：2000年第36卷第2期

页      面：721-725页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 08[工学] 0825[工学-航空宇航科学与技术] 

主　　题：Missile Plant uncertain Guidance linear discrete system TIME OF FLIGHT Probability density function 

摘      要：The existing optimal guidance laws assume that the time-to-go is known exactly. The time-to-go is usually estimated and thus is a random variable. The Issue of optimal guidance with uncertain time-to-go is dealt with here. A problem of control of linear discrete systems with unknown time-to-go is formulated and served. The solution is applied to derive guidance laws. The solution depends on the probability density function of the time-of-flight. This guidance law has the structure of a rendezvous guidance law where the guidance gains are time-dependent and depend on the distribution of the time-to-go. Examples that demonstrate these dependencies are presented.