【摘要】 本文通过对运用GPS测量改算自贡市各等级城市控制网点成果的过程及结果的论述分析，证实了运用GPS测量改算城市控制网点成果具有精度好、效率高等特点。在此基础上探讨其可行性，并提出一些看法。更多还原

【Abstract】 ] In this article. through discussing and analysing the course and the result oftransformation of Zigong city control network by using GPS surveying. It is proved thatthere is high accuracy and high efficiency in using GPS surveying methed to transform the city control network points. In addltion. its feasibility is discussed, and some suggestions are given.更多还原