Abstract:
In the conventional scenario for GPS surveying based on the post-processing mode, this requires the users to have a minimum of two sets of GPS receiver hardware as well as the associated GPS processing software package. The commercial software tends to come equipped with a full suite of options (i.e. baseline processing, network adjustment and coordinate transformation) and had a common easy-to-user interface. Nevertheless, there are some disadvantages of using the commercial software. Many data processing algorithms used in the commercial software remain unrevealed. In additional, the introduction of new processing algorithms into the commercial software is impossible. These shortcomings become a barrier to GPS newcomers in understanding algorithms used in GPS data processing steps and to GPS researchers in experimenting new data processing algorithms. Development of an open source GPS baseline processing software is therefore needed especially for education and research. This research aims to develop a simple Matlab-based GPS baseline processing software that is intended for educational and research purposes. To demonstrate the capability of the developed Matlab-based GPS baseline processing software, real data sets were processed with the developed software, and the results of processing were compared with the results obtained from the commercial SKI-pro software. The overall results show that the accuracy of GPS coordinates obtained from the developed software is at the same level as the SKI-Pro software.