基于传感器联合测量的车载POS精度检测系统设计

发布时间：2018-03-01 19:46

本文关键词： POS系统动态精度检测 ICP算法轨迹修正误差分析　出处：《仪器仪表学报》2017年04期 　论文类型：期刊论文

【摘要】：POS系统是移动测量系统的重要组成部分,其位置姿态精度一直受到广泛关注。结合全站仪、激光跟踪仪、GNSS授时装置等传感器,设计了动态精度检测系统,开展了POS系统动态精度检测方法研究。主要采用单次测量时间统计、平滑曲线拟合等方法探测检测系统的测量误差,并在误差剔除的基础上,结合ICP算法,利用跟踪仪高精度测量数据,对全站仪数据进行修正,提高检测系统整体测量精度。最后,在某实验区,进行车载POS系统动态跟踪实验,分别采用整体轨迹对比和实时点位对比方法进行POS系统事后处理精度检测和实时导航精度检测。实验结果表明:采用该种检测方法,动态检测系统能检测出POS实时和事后处理的动态定位精度。
[Abstract]:The POS system is an important part of the mobile measurement system, and its position and attitude accuracy has been paid more and more attention. A dynamic precision measuring system is designed based on the sensors such as total station and laser tracker. In this paper, the dynamic precision detection method of POS system is studied. The measurement error is detected by single measurement time statistics, smoothing curve fitting and so on. On the basis of error elimination, combined with ICP algorithm, the dynamic precision detection method of POS system is studied. Using the high precision measurement data of tracker, the data of total station is corrected to improve the overall measuring accuracy of the detection system. Finally, in a certain experimental area, the dynamic tracking experiment of POS system on vehicle is carried out. The whole trajectory contrast and the real time point position contrast are used to detect the post-processing accuracy and the real-time navigation accuracy of POS system, respectively. The experimental results show that the proposed method can be used to detect the accuracy of post-processing and real-time navigation of the POS system. The dynamic detection system can detect the real-time and post-processing dynamic positioning accuracy of POS.
【作者单位】：信息工程大学导航与空天目标工程学院;地理信息工程国家重点实验室;61206部队;
【基金】：国家自然科学基金(41274014,41501491) 地理信息工程国家重点实验室重点基金课题(SKLGIE2014-Z-2-1)项目资助
【分类号】：TN96

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