The Improved Success Rate of Integer Ambiguity Resolution by Using Many Visible GPS/GNSS Satellites

• 발행기관: 한국항해항만학회
• 저자명: Kentaro Kondo
• 간행물 정보: 『한국항해항만학회 학술대회논문집』2006년도 International Symposium on GPS/GNSS Vol.2, 1~4쪽, 전체 4쪽
• 주제분류: 공학 > 해양공학
• 파일형태: PDF
• 발행일자: 2006.10.25

영문 초록

This study investigates the improvement in the theoretical success rate of the integer ambiguity resolution in GPS/GNSS carrier-phase positioning by using many visible satellites. It estimates the dependence of the rate on the baseline length in relative positioning under the condition of the use of double/triple-frequency navigation signals. The calculation results show that the use of 14 navigation satellites (i.e., seven GPS and seven Galileo ones) remarkably improves the success rate under the condition of very short baseline length, compared with the use of seven GPS ones. The numerical reliability of the calculated success rates is strictly tested by examining the tightness of the union and minimum-distance bounds to the rate. These bounds are also shown to be effective to investigate the realization of the high success rates.

목차

1. Introduction

2. Equations of GPS/GNSS measurements

3. Maximum a posteriori success rate

4. Voronoi polytope

5. Methods to calculate the optimal success rate

6. Calculation results

7. Conclusion

키워드

GPS GNSS Galileo integer ambiguity resolution success rate ionospheric delay baseline length sphere decoding