Suitability of two INS trans-alignment methods in powered phase of launch vehicle

Author

Rongjun Mu ; Chao Cheng ; Yuntian Li

Author_Institution

Dept. of Astronaut., Harbin Inst. of Technol., Harbin, China

fYear

2014

Firstpage

2188

Lastpage

2193

Abstract

Take INS transfer alignment (trans-alignment) in powered phase of launch vehicle as example, suitability of two methods is compared in the paper. One is under launched point inertial coordinate, and the other is local geographical. Differences of state vectors choice, error-propagation, measurement model and influences of attitude maneuvers in powered phases under different coordinates are surveyed through theoretical analysis and simulation. Results validated that there are obvious differences between alignments under these two coordinates, and relative conclusions could provide important reference information for research on theories and design of engineer schemes.

Keywords

inertial navigation; space vehicle navigation; INS trans-alignment methods; INS transfer alignment; attitude maneuvers; error-propagation; inertial navigation system; launch vehicle powered phase; launched point inertial coordinate; local geographical coordinate; measurement model; state vector choice; Accelerometers; Analytical models; Estimation; Mathematical model; Navigation; Position measurement; Vehicles; alignment; launched point inertial coordinate; local geographical coordinate; powered phase of launch vehicle;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronics and Control (ICMC), 2014 International Conference on

Print_ISBN

978-1-4799-2537-7

Type

conf

DOI

10.1109/ICMC.2014.7231957

Filename

7231957