A Theoretical Study on Free Gyrocompass

• 발행기관: 한국항해항만학회
• 저자명: Tae-Gweon Jeong Sok-Chu Park
• 간행물 정보: 『한국항해항만학회 학술대회논문집』2006 추계학술대회논문집(1), 9~14쪽, 전체 6쪽
• 주제분류: 공학 > 해양공학
• 파일형태: PDF
• 발행일자: 2006.12.30

영문 초록

The authors aim to establish the theory necessary for developing the free gyrocompass. The following considerations are taken One is to suggest north-finding principle by the angular velocity of the earth's rotation, and the other is to suggest that the motion rate of the spin axis in the free gyro frame is transformed into the platform frame and this transformed rate is again transformed into the NED navigation frame. After transformation ship's heading is obtained using the fore-aft and athwartship components of the motion rate of the spin axis in the NED frame In addition it was suggested how to solve the transformation matrix necessary for transforming each frame.

목차

1. Introduction

2. North-seeking principle by using the angular velocity of the earth's rotation

3. Representation of the motion rate of the spin axis in the frames

4. Determination of transformation matrices

5. Algorithmic design of free gyrocompass

6. Conclusion

키워드

free gyro angular velocity of the earth's rotation motion rate of spin axis gyro frame plaiform frame NED navigation frame