车载激光扫描测量系统外标定方法的研究和实现

Calibration Methodology and Realization of Mobile Laser System

车载激光扫描仪的外标定是车载激光扫描系统集成中的重要内容之一,其中车载激光扫描仪的外方位元素是获取高精度车载激光点云的必要参数。本文介绍了车载激光扫描仪外标定的原理,针对宁波市测绘设计研究院研发的高精度移动激光扫描测量系统的实际情况,提出了一种切实可行的标定方法,通过建立车载激光扫描仪标定用标定场,采集标定数据并进行了标定参数的求解,验证了本文提出的方法有效性。

This paper mainly introduced the methodologies and the applicability of electromagnetic detecting 、mag-netic gradient detecting and direct detecting ,and proposed the method of combining magnetic gradients and direct detec-ting to precise positioning the deep underground pipeline .This method achieved good results in engineering applications .