In-Flight Alignment of Inertial Navigation System Using Line-Of-Sight Information

• 발행기관: 한국항해항만학회
• 저자명: Seung-Jin Oh Dong-Bum Kim Woo-Hyun Kim Sang-Keun Jeong Hyung-Keun Lee Jang-Gyu Lee
• 간행물 정보: 『한국항해항만학회 학술대회논문집』2006년도 International Symposium on GPS/GNSS Vol.1, 1~5쪽, 전체 5쪽
• 주제분류: 공학 > 해양공학
• 파일형태: PDF
• 발행일자: 2006.10.24

영문 초록

This paper presents an in-flight alignment method for strapdown inertial navigation systems based on the line-of-sight information. Unlike the existing methods, the proposed method utilizes only the 2-axis angle measurements of the onboard image sensor and does not require any explicit range measurements between the vehicle and landmarks. To improve the accuracy of all the position, velocity, and attitude estimates through the in-flight alignment, an error model of the image-sensor-aided SDINS is derived. A simulation study demonstrates that the accuracy of SDINS can be improved by the line-of-sight information only.

목차

1. Introduction

2. Integration of Image Sensor and INS

3. Simulation results

4. Conclusion

키워드

In-Flight Alignment Image Sensor Line-Of-Sight Inertial Navigation System