摘要
北斗/GNSS实时动态差分技术(RTK)已广泛地应用于工程勘测、数字测图、施工放样等工程领域。但对于初学者,尤其是青年学生在北斗/GNSS RTK基准站设置、移动台坐标推算与坐标转换的理论理解和实践操作方面,仍然存在较多疑惑和理解偏差,导致实验教学效果不佳。鉴于此,作者根据多年一线的科研教学实践和对北斗/GNSS理论理解的基础上,结合易于理解的导线测量技术,剖析北斗/GNSS RTK技术与导线测量在基线向量/坐标增量解算方面的异同之处,诠释北斗/GNSS RTK起始坐标的获取与坐标转换参数的配置问题。最后,通过实例验证北斗/GNSS RTK技术在当前可满足cm级的测设精度要求。
BeiDou Navigation Satellite System(BDS)/Global Navigation Satellite System(GNSS)Real Time Kinematic(RTK)technology has been applied to many engineering fields,such as engineering surveying,digital mapping,setting out for construction etc.But for students or younger technicians,even for younger professional guidance teachers,the theories and operations of reference station setting,rover(s)coordinate calculation and transformation about BDS/GNSS RTK,made them wonder or misunderstood.Thus the effect of experimental teaching is not good.Therefore,according to the teaching experience and the deeply cognition to GNSS theories,and combination of easy to understand key techniques for traverse survey,the similarities and differences between RTK baseline vector and coordinate increments of traverse survey are analyzed.Moreover,starting coordinates and coordinate transformation problems for RTK calculation are also illustrated.Finally,the cm level precision about RTK is proved by an experimental example.
作者
李克昭
石俊鹏
牛海鹏
马素霞
LI Kezhao;SHI Junpeng;NIU Haipeng;MA Suxia(School of Surveying and Landing Information Engineering,Henan Polytechnic University,Jiaozuo 454000,China;Collaborative Innovation Center of BDS Research Application,Zhengzhou 450052,China)
出处
《测绘工程》
CSCD
2018年第8期76-80,共5页
Engineering of Surveying and Mapping
基金
国家自然科学基金资助项目(41774039
41272373)
河南省高等教育教学改革研究与实践项目(2017SJGLX036)
河南理工大学教育教学改革研究与实践重点项目(2017JG003)
关键词
北斗卫星导航系统
GNSS
实时动态差分技术
基线向量
坐标转换
BeiDou Navigation Satellite System
Global Navigation Satellite System(GNSS)
Real Time Kinematic(RTK)
baseline vector
coordinate transform