Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Dimension-reduction method of true proportional navigation guidance law

LI Kebo,CHEN Lei,ZHANG Yi(College of Aerospace and Materials Engineering,National University of Defense Technology,Changsha 410073,China)  
The dimension-reduction method of the true proportional navigation(TPN) guidance law is proposed.Firstly,the rotation principle of the line of sight(LOS) was investigated,two kinds of angular velocities of LOS were presented,and so were their calculation methods.Then,the LOS kinematic equation was advanced,and the new relative dynamic equation between interceptor and target was proposed.It was found that there is an instantaneous rotation plane of LOS(IRPL) in the three-dimensional(3D) space,in which two-dimensional(2D) guidance laws can be constructed to serve for 3D interception guidance.The spatial 3D true proportional navigation(TPN) guidance law was directly introduced into IRPL without any approximation and linearization to transform into dimension-reduced 2D TPN,and the characteristics were studied.Finally,an exoatmospheric interception was taken for simulation to demonstrate the effectiveness of the theory presented in this paper.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved