GPS在工程测量实践中的应用及存在的问题

Application and Existing Problems of GPS in Engineering Surveying Practice

GPS作为一种新的应用技术,具有测量时间短、精度高的特点。在工程测量中有着广泛的应用。它为保证工程项目规划和施工的准确性和质量提供了有力的技术保障,也能满足降低成本、提高效率的新要求。但在实际应用中仍存在着选点困难、高程精度稳定性差、电离层干扰大等问题,需要对野外和室内工作进行优化。通过合理选择观测周期、适当提高回波频率、优化工业数据等措施,可以进一步提高GPS技术的测量精度,实现工程测量的长远发展。

As a new application technology,GPS has the characteristics of short measurement time and high accuracy.It is widely used in engineering survey,and provides a strong technical guarantee for the accuracy and quality of project planning and construction,and also meets the new requirements of reducing costs and improving efficiency.However,there are still some problems in practical application,such as difficult point selection,poor stability of elevation accuracy,and large ionospheric interference,which need to be optimized for field and indoor work.The measurement accuracy of GPS technology can be further improved and the long-term development of engineering measurement can be achieved by reasonable selection of observation period,appropriate increase of echo frequency,optimization of industrial data and other measures.