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Alignment and Navigation of Inertial Navigation and Guidance Unit using Inertial Explorer Software  

Kim, Jeong-Yong (임무설계팀)
Oh, Jun-Seok (임무설계팀)
Roh, Woong-Rae (임무설계팀)
Publication Information
Aerospace Engineering and Technology / v.9, no.1, 2010 , pp. 50-59 More about this Journal
Abstract
In this paper, the alignment and navigation results by INGU(Inertial Navigation and Guidance Unit) onboard software and by Inertial Explorer which is a post-processing software specialized for IMU(Inertial Measurement Unit) are compared for identification of inertial sensor error models and estimation of alignment and navigation errors for KSLV-I INGU. For verification of the IMU error estimated by Kalman Filter of Inertial Explorer, the covariance parameters of inertial sensor error model state are identified by using stochastic error model of inertial sensors estimated by Allan variance and the alignment and navigation test with static condition and the land navigation test with dynamic condition are carried out. The validity of inertial sensor model for KSLV-I INGU is verified by comparison the alignment and navigation results of INGU on-board software and Inertial Explorer.
Keywords
Inertial Navigation System; Alignment; Navigation; Kalman Filter;
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