摘要
阐述了空间数据的不确定度及其在点位放样中的体现.结合丹-锡高速公路项目的定线测量,使用Trimble 5700型双频GPS接收机,在保障观测条件的情况下,利用GPS RTK技术重复放样点位.经过对检测结果分析,得到实际综合不确定度为1.4 cm.测量结果表明,只要方法和措施得当,并严格按照技术规范操作,RTK技术完全可以满足高速公路定线工程的需要.
Combined with the staking project＇s processing of expressway from Dandong to Xinlinhaote, the uncertainty of spatial data and its embodiment in points＇ setting out are expatiated. In this project processing, using 5700 GPS receiver apparatus,on the good observation condition,we gather many the distance values between two stakes set out twice using a pair of same coordinate values. And analyzed this checking observation values, A 1.4 cm result in uncertainty in integration had been get. As a conclusion, proper ways, powerful checking methods,standard operating guides by the national or professional standard,RTK technique may meet the needs of expressway construction projection completely.
出处
《内蒙古师范大学学报（自然科学汉文版）》
CAS
2007年第2期160-163,167,共5页
Journal of Inner Mongolia Normal University(Natural Science Edition)
基金
国家自然科学基金资助项目(49774227)
国家教育部博士点基金资助项目(96018706)
国土资源部专项研究计划资助项目(200010101)
