GPS—RTK在地质测绘应用与探讨

Application and Discussion about GPS-PTK in Geological Mapping

人类社会的发展,也可以说是人类不断改进生产工具的过程,从石器到现今高科技产品,都是为顺应社会需要而产生的。应用全球定位系统(GPS)进行精确定位距今已近二十年了。实时动态GPS广泛用于精密定位,对于地球大陆板块运动、地壳形变监测提供了非常有效的手段。因此,RTK涉及到载波相位整周模糊度,其主要有三大特点:精确、可靠、时间短,其可靠性达到99.9%。GPS-RTK技术的诞生促使地质测绘工作发生了重大的变革。本文阐述利用GPS Ashtech快速-RTK在地质测绘中的优、缺点及误差来源与故障排除。

The development of human society is a process for them to improve production tools continuously.Not only the stone implements,but also the technological products were all born by what the world need.There was almost 20 years already to pinpoint by real-time dynamic GPS,and it provide an effective method to monitor continental plates movement and crustal deformation.For these reasons above,PTK which relate to carrier phase integer ambiguity have three characteristics： accuracy,reliability（the reliability of it could achieve 99.9%） and short duration.The technology of GPS-PTK prompt a big change in geology mapping.The advantage and disadvantage of GPS Ashtech rapid-PTK using in geology mapping was discussed.