基于MATLAB的全站仪采集数据自动化预处理的研究

在大比例尺野外数字测图中,全站仪所采集的碎部点数据格式与现有的成图软件需要的数据格式存在较大差别。因此,如何快速、正确地检校数据并完成数据之间的格式转换工作是内外业成图一体化非常关键的一步。本文主要阐述利用MATLAB软件编写的程序实现全站仪野外观测数据的自动检核、数据纠正处理、外业编码-成图软件编码匹配识别、数据转化等预处理操作,并以某省某一测区数据为例对所编写程序进行验证。实验结果表明,所编写的程序可以快速检校数据并进行数据格式转换,进而提高工作效率、减少工作量,具有一定的实际应用价值。

Research on Automatic Pre-processing of Data Acquired by Total Station Instrument Based on MATLAB

In the large-scale field digital mapping,the data format of fragments collected by total station instrument is quite different from that required by existing mapping softwares.Therefore,to quickly and correctly check the data and complete the format conver-sion between the data is a key step in the integration of internal and external mapping.By using the program written by MATLAB soft-ware,this paper realizes the automatic checking of total station instrument field observation data,data correction,code matching and recognition between field data and mapping software,data conversion,and other pre-processing operations.The program is validated by the sample data collected in a certain survey area of a province.The experimental results show that the program can quickly verify the data,convert the data format,improve the efficiency,and reduce the workload.It has a certain practical application value.