GPS data processing is usually preceded by generating a RINEX file. RINEX, standing for Receiver Independent Exchange, is a conventional format that does not depend of type of GPS receivers. The conversion is usually done using a DOS-based program called TEQC produced by UNAVCO. Using this software, the conversion is done using text-based commands using several parameters, which vary for different purposes and different types of receivers. Therefore, data conversion may be time-consuming and inefficient.

To overcome the issue of time consumption and efficiency, an assisting tool needs to be developed. One of the possibilities is to develop GUI-based (Graphical User Interface) software that enables users to generate RINEX file from different GPS receivers in a simple procedure. For this purpose, such software has been developed using Delphi software by utilizing function of TEQC. Instead of typing complicated text-based command, this software enables users to generate RINEX files by a few clicks. The basic idea of the software is by creating an auto executed batch file via the GUI. This batch file has a similar function with the command line on TEQC. The different is that the batch file is auto generated and the parameter of the TEQC options is also automatically included once user clicks on the options of the interface.

A survey to investigate how this software can improve the efficiency of data conversion has been conducted as well. Result of the survey shows that expert users can save averagely 60 seconds of time by utilizing this software compared to the use of command line-based TEQC. Meanwhile, amateur users can save even two minutes. Referring to the saving time, the use of the software may offer a great efficiency, especially if it is used in states where labour salary is reasonably high.

This work has been presented in the Map Asia 2008 International Conference. The full paper can be downloaded by clicking this link. Click this link to download the software.