针对GPS实时动态定位技术在铁路勘测中的应用，提出连续三角网重复设站测量既有线的方法。
A new surveying method with GPS RTK technique is proposed for the existing railway by overlapped stations in continuous triangle networks.
RTK定位技术是基于载波相位观测值的实时动态定位技术，它在地形测量中蕴含着巨大的潜力。
The RTK localization is a real-time and dynamic localization technology which is based on the observed value in carrier phase. It has the huge potential in the terrain survey.
基于视频图像的动态实时测量系统是利用多媒体技术和数字图像处理技术，完成对自准直经纬仪的图像数据进行的测量任务；
The dynamic real-time measure system based on video image utilizes multimedia technique and digital video processing to fulfill measure of self-straight theodolite video data;
基于视频图像的动态实时测量系统是利用多媒体技术和数字图像处理技术，完成对自准直经纬仪的图像数据进行的测量任务；
The dynamic real-time measure system based on video image utilizes multimedia technique and digital video processing to fulfill measure of self-straight theodolite video data;
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