Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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The Observability Analysis of SDINS on The Trajectory for The In-Flight Alignments

스트랩다운 관성항법 시스템의 운항 중 정렬을 위한 궤적에 따른 가관측성 분석

  • Park, Joon-Goo (School of Electrical Engineering, Seoul National University) ;
  • Lee, Jang-Gyu (School of Electrical Engineering, Seoul National University) ;
  • Park, Chan-Gook (School of Electrical Engineering, Seoul National University) ;
  • Chung, Do-Hyung (School of Electrical Engineering, Seoul National University)
  • Published : 1996.07.22
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Abstract

In this paper, presented are the results of observability analysis for the vehicle maneuver during In-Flight Alignment of SDINS. The target system for observability analysis is 10th order one. Three trajectories for IFA are considered. To analyze the observability of the time varying system, correlation coefficient is used and to measure the degree of observability of the given system, simulation is carried out using covariance matrix. The results of simulation show that trajectories which are having continuous changes in attitude and acceleration of system is superior to straight trajectory in correcting navigation errors.

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