机载测量系统在大比例尺地形图测绘中的应用——以雄安新区为例

Application of airborne measurement system in large-scale surveying and mapping

针对传统大范围基础测绘地形图更新工作资金投入多、安全隐患大、外业工作周期较长等问题,本文将机载测量系统应用到大范围地形图测绘中,详细介绍了机载激光雷达和航空摄影测量的系统检校、外业数据采集、内业处理等方法。通过工程应用实例表明,采用机载测量系统可以满足1∶2000地形图测绘工作的要求,有效减少外业测量工作量,是大范围基础地形图测绘工作的有效手段。

In view of the problems of traditional large-scale topographic map updating work, such as cost expensive, safety and longer field work cycle, this paper applies airborne measurement system for large-scale topographic mapping, and introduces in detail the airborne LiDAR and aerial photogrammetry, such as system check and calibration, field data collection and internal processing methods, and so on. The actual engineering application example shows that the airborne measurement system can meet the requirements of 1∶2000 topographic mapping work, effectively reduce the external measurement workload, and is an effective means for large-scale basic topographic mapping.