• Title/Summary/Keyword: GPS/INS integrated System

Search Result 113, Processing Time 0.019 seconds

Research on the Method of a Composite Navigation Algorithm Using Aircraft Recorder Data (비행기록자료를 이용한 복합항법 알고리즘 구성)

  • Kim, Jae-Hyung;Lyou, Joon
    • Journal of the Korean Society for Aeronautical & Space Sciences
    • /
    • v.36 no.5
    • /
    • pp.462-471
    • /
    • 2008
  • Flight recoder is used to analyze the accident factors and prevent the accident. In the analysis of the flight recorder, the most important factor is how to estimate the precise location of the flight. Traditional aviation navigation is based on stable sensors such as DME and VOR. In order to enhance the precision of the location estimation, the integrated navigation algorithm is designed to incorporate DME, Air data sensors and INS(Inertial Navigation System). The results demonstrate that the proposed algorithm can achieve better accuracy, comparing with the traditional navigation schemes, in flight location estimation.

Vision-based Navigation using Semantically Segmented Aerial Images (의미론적 분할된 항공 사진을 활용한 영상 기반 항법)

  • Hong, Kyungwoo;Kim, Sungjoong;Park, Junwoo;Bang, Hyochoong;Heo, Junhoe;Kim, Jin-Won;Pak, Chang-Ho;Seo, Songwon
    • Journal of the Korean Society for Aeronautical & Space Sciences
    • /
    • v.48 no.10
    • /
    • pp.783-789
    • /
    • 2020
  • This paper proposes a new method for vision-based navigation using semantically segmented aerial images. Vision-based navigation can reinforce the vulnerability of the GPS/INS integrated navigation system. However, due to the visual and temporal difference between the aerial image and the database image, the existing image matching algorithms have difficulties being applied to aerial navigation problems. For this reason, this paper proposes a suitable matching method for the flight composed of navigational feature extraction through semantic segmentation followed by template matching. The proposed method shows excellent performance in simulation and even flight situations.

Development of Integrated Navigation Computer for On/Off Line Processing (실시간/후처리 기법을 고려한 복합 항법 컴퓨터 개발)

  • Jin, Yong;Park, Chan-Gook
    • Journal of the Korean Society for Aeronautical & Space Sciences
    • /
    • v.30 no.8
    • /
    • pp.133-140
    • /
    • 2002
  • In this paper, the structure of integrated navigation computer for experiment is proposed. It is designed for considering the real time processing and data storage capacity. It will be used in missile, aircraft, submarine system and experimental vehicle. The I/O device supports IMU, GPS, odometer, altimeter, depth sensor, inclinometer etc. And the main storage device uses the tape device. That can improve the system stability. Therefore it can be used in a high dynamic or shock environment. The embedded linux is used as an Operating System. For the real time capability, sensor data processing and algorithm processing units are seperated. The time synchronization is referenced by IMU data.