The terminal guidance problem for a fixed-trim re-entry body is formulated with the objective of synthesizing a closed-loop steering law. A transformation of variables and subsequent linearization of the motion, with the sight-line to the target as a reference, reduces the order of the state system for the guidance problem. The reduced order system, although nonlinear and time-varying, is simple enough to lend itself to synthesis of a class of guidance laws. A generalization of the feedforward device of classical control theory is successfully employed for compensation of roll autopilot lags. The proposed steering law exhibits superior miss-distance performance in a computational comparison with existing fixed-trim guidance laws.
Fixed-trim re-entry guidance analysis
Guidance and Control Conference ; 1981 ; Albuquerque, NM
1981-01-01
Miscellaneous
No indication
English
Fixed-trim re-entry guidance analysis
AIAA | 1981
Fixed-trim re-entry guidance analysis
NTRS | 1982
|Fixed-trim re-entry guidance analysis
AIAA | 1982
|