|Table of Contents|

Optimal Guidance Law of Satellite Guided Bombs with Large Landing Angle


Research Field:
Publishing date:


Optimal Guidance Law of Satellite Guided Bombs with Large Landing Angle
DOU LeiYANG Xin-min
National Key Laboratory of Science and Technology on Ballistics,NUST,Nanjing 210094,China
landing angles satellite guided bombs optimal guidance law minimum principle Riccati equation
An optimal guidance law is researched to meet the trajectory requirements of large landing angle for satellite guided bombs.Based on the characteristics of satellite guided bombs,the missile-target motion state equations are established.The optimal guidance law is designed by using minimum principle and solving Riccati equation respectively and the results are accordant.The optimal guidance law is simplified and the suboptimal guidance law is given to adapt to engineering and simulation.Whole ballistic simulations of six degree-of-freedom are made by using the suboptimal guidance law and compared with the simulation results of general proportional navigation guidance law.The landing angle of the proposed method increases 60 percent.This guidance law can improve landing angle and hit precision significantly and meet the trajectory requirements of satellite guided bombs.


[1] Anon. Excalibur??s GPS-gu ided pro jectiles hit targets [ EB /OL] . http: / /www8. janes. com /em e ta /Den ia?l ur l = /Search / docum entV iew. do? docId = /conten t1 / janesdata /. 2006- 10- 01.
[2] Rupert P. Excalibur firings test base-b leed capab ility [ EB /OL] . http: / /www8. janes. com /em e ta /Den ia?l ur l = /Search / do cum entV iew. do? docId = / conten t1 / janesdata /. 2007- 01- 01.
[3] Dav id C I. New targeting system to update JDAM s in flight[ EB /OL]. http: / /www 8. janes. com /em eta /Den ia ?l url = /Search / do cum entV iew. do? doc Id = / content1 / janesdata /. 2003- 07- 01.
[4] 杨军, 凡永华, 于云峰, 等. 参数空间方法与飞行控 制系统[M ] . 北京: 航空工业出版社, 2008: 93 - 101.
[5] 梁卓, 薛晓中, 孙瑞胜, 等. 基于参数空间法的 SINS /GPS 制导炸弹滚转控制器设计[ J]. 南京理 工大学学报( 自然科学版) , 2009, 33 ( 2): 204 - 207, 214.
[6] La rson K M, Agnew D C. Applica tion o f the g loba l position ing system to c rusta l defo rm ation m easurem ent. 1-Prec ision and accuracy [ J]. Journa l o f Geophysical Research, 1991, 96( 10): 16547- 16565. [ 7 ] Lam V C. T ime- to-go estim ate fo r m issile gu idance [ A ]. 2005 AIAA Guidance, Nav ig ation, and Contro l Conference and Exhib it [ C ]. San Francisco, CA, USA: A IAA, 2005: 1- 15.


Last Update: 2010-06-30