Study on the Real-Time Precise Orbit Biases Correction Technique for the GPS/VRS Network

• 발행기관: 한국항해항만학회
• 저자명: LI Cheng-gang HUANG Ding-fa ZHOU Dong-wei ZHOU Le-tao XIONG Yong-liang XU Rui
• 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

A precise real-time method of using the IGS ultra rapid products (IGU) and the GPS broadcast ephemeris to calculate the VRS orbit corrections was presented here which was suited for GPS/VRS reference station network based positioning. Test data acquired from both the SGRSN (Sichuan GPS Reference Station Network) and SCIGN (Southern California integrated GPS network) were used to evaluate the performance of the modeling techniques. The new method was proven to be more precise and reliable compared with the existing conventional network-based orbit error interpolation method. It was shown that 0.004ppm relative accuracy was reached, namely the influence from the orbit bias for the RTK positioning within 100km area can be of sub-millimeter level.

목차

1 Introduction

2 ANALYSIS OF THE ACCURACY OF THE BROADCAST AND IGU ORBITS

3 METHODOLOGY FOR ‘CORRECTION TERM GENERATION’

4 EXPERIMENTAL RESULTS

5 CONCLUSIONS

키워드

GPS ephemeris VRS (Virtual Reference Station) orbital correction Network RTK