A Study on an Improved Guidance Law Which is Insensitive to the Time-to-Go Estimation Error

Author

Xu, Yanke ; Han, Yumeng

Author_Institution

Sch. of Autom., Northwestern Polytech. Univ., Xi´´an, China

Volume

2

fYear

2009

fDate

12-14 Dec. 2009

Firstpage

246

Lastpage

249

Abstract

PN (proportional navigation) law is in wide use. In this paper, the traditional proportional navigation control system is analyzed, then we find that the traditional proportional navigation guidance law is sensitive to the time-to-go (i.e., time to interception) measurement, in other words, the time-to-go estimation error may cause significant degradation in the performance of the PN guidance law. In this paper, we design a new guidance law which is called reduced sensitivity guidance law (RSL) to solve the problem. At the end of the article, the simulation results show that the RSL method is insensitive to the time-to-go estimation error and the performance of the RSL guidance law system is improved.

Keywords

control system analysis; missile guidance; proportional control; sensitivity analysis; missile guidance; proportional navigation control system analysis; proportional navigation guidance law; reduced sensitivity guidance law; time-to-go estimation error; Acceleration; Control system analysis; Control systems; Estimation error; Geometry; Missiles; Navigation; Optimal control; Proportional control; Virtual colonoscopy; estimation error; guidance and control; proportional navigation; reduced sensitivity guidance law; simulation; time-to-go;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Intelligence and Design, 2009. ISCID '09. Second International Symposium on

Conference_Location

Changsha

Print_ISBN

978-0-7695-3865-5

Type

conf

DOI

10.1109/ISCID.2009.208

Filename

5371069