大比例尺数字线划图（DLG）更新产品质量检验的探讨与实践

摘要

由于多年来数据积累，目前大比例尺数字线划图数据获取主要采用更新的作业方式，如何有效地检验数据更新的质量始终是测绘工作者面临的问题。本文结合工作实际，从更新产品的样本抽取、质量元素及权重划分、详查内容、产品缺陷分类进行了初步探讨。%Because of years of accumulated data ,the current large-scale DLG data acquisition mainly uses updating practices . How to effectively test the quality of the updating data is always faced by surveying workers .The paper combine with actually work , it discussed sample product , quality elements , weight division , detailed investigation and the products defect classification .