Transfer alignment in strapdown inertial navigation system using CCD star tracker

Author

Zhang, Chongmeng ; Wang, Guochen

Author_Institution

Tianjin Navig. Instrum. Res. Inst., Tianjin, China

fYear

2011

fDate

14-16 Sept. 2011

Firstpage

1

Lastpage

5

Abstract

The devices error in inertial navigation system, especially gyro drift can mostly effect navigation precision, aim to make navigation system to work long time and with high precision of work, transfer alignment technology using Star tracker to estimate and compensate gyro drift and accelerometer bias is proposed with "velocity plus attitude" matching scheme, in which attitude information is provided by Star CCD star tracker and velocity information achieves from inertial navigation system, the simulation results indicates that gyro drift and acceleration bias can be fully estimated out in short time, whose precision can greatly improve by increasing estimation time.

Keywords

CCD image sensors; image matching; inertial navigation; star trackers; CCD star tracker; gyro drift; matching scheme; strapdown inertial navigation system; transfer alignment; velocity plus attitude; Accelerometers; Equations; Inertial navigation; Kalman filters; Mathematical model; Observability; Integrated Navigation; Star tracker; Strapdown inertial navigation system; Transfer Alignment;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, Communications and Computing (ICSPCC), 2011 IEEE International Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4577-0893-0

Type

conf

DOI

10.1109/ICSPCC.2011.6061610

Filename

6061610