摘要
为研究GNSS单天线船姿测量的性能,在分析航速、航迹对船载GNSS单天线测姿精度影响的基础上,提出了基于载波相位历元间差分(TDCP)测速的船姿测量方案。首先利用TDCP求取历元间高精度位移增量,然后计算历元间平均速度,最后基于测船速度反演测船姿态。海试结果表明:基于TDCP方案的测姿性能与船速正相关、与船艏向变化率负相关,测姿估算精度略优于PPP方案、明显优于Doppler方案,为船载GNSS单天线测姿方法的研究与工程应用提供了参考。
In order to study the performance of GNSS single-antenna ship attitude measurement,this paper proposes a speed measurement method for ship attitude measurement,namely Time-Differenced Carrier Phase(TDCP)on the basis of analyzing the influence of speed and track on shipboard GNSS single-antenna attitude measurement accuracy.TDCP is used to obtain the displacement vector between neighbouring epochs and then derive the velocity for ship attitude measurement.Maritime experiments show that the attitude measurement performance based on the TDCP scheme is positively correlated with ship speed and negatively correlated with the rate of bow change.The accuracy of attitude measurement estimation is slightly better than the PPP scheme and significantly better than the Doppler scheme,which provides a reference for the research and engineering application of the single-antenna attitude measurement method for shipborne GNSS.
作者
杨岳
刘杨
李梦昊
王亚彬
刘焱雄
YANG Yue;LIU Yang;I Menghao;WANG Yabin;LIU Yanxiong(College of Geodesy and Geomatics,Shandong University of Science and Technology,Qingdao 266590,China;First Institute of Oceanography,M N R,Qingdao 266061,China;Key Laboratory of Oceanic Surveying and Mapping,Ministry of Natural Resources,Qingdao 266590,China)
出处
《海洋测绘》
CSCD
北大核心
2023年第2期40-45,共6页
Hydrographic Surveying and Charting
基金
国家自然科学基金(42004030)
国家重点研发计划(2020YFB0505805)
中央级公益性科研院所基本科研业务费专项(GY2022S03)
青岛海洋科学与技术试点国家实验室山东省专项经费“问海计划”(2021WHZZB1002)
山东省技术创新引导计划(2020YFB0505800)。
关键词
全球卫星导航系统
船姿测量
单天线测姿
多普勒频移
精密单点定位
载波相位历元间差分
global navigation satellite system(GNSS)
ship attitude measurement
single-antenna attitude measurement
doppler shift
precise point positioning(PPP)
time-differenced carrier phase(TDCP)
