Application SVD-Least Square Algorithm for solving astronomical ship position basing on circle of equal altitude equation

• 발행기관: 한국항해항만학회
• 저자명: Van Suong Nguye Namkyun Im
• 간행물 정보: 『한국항해항만학회 학술대회논문집』2013 추계학술대회논문집, 130~132쪽, 전체 3쪽
• 주제분류: 공학 > 해양공학
• 파일형태: PDF
• 발행일자: 2013.09.01

영문 초록

This paper presents an improvement for calculating method of astronomical vessel position with circle of equal altitude equation based on using a virtual object in sun and two stars observation. In addition, to enhance the accuracy of ship position achieved from solving linear matrix system, and surmount the disadvantages on rank deficient matrices situation, the authors used singular value decomposition (SVD) in least square method instead of normal equation and QR decomposition, so, the solution of matrix system will be available in all situation. As proposal algorithm, astronomical ship position will give more accuracy than previous methods.