Understanding GPS processing and results
Ansah, Maxwell Owusu
The use of Global Positioning Systems has undauntedly brought with it many welcome advances in its applications in surveying. The high accuracies achievable with the technology accompanied by its ability to overcome the age old problem of intervisibility have made GPS surveys a first choice for most surveyors. GPS accuracies and applications are increasing by the day. The understanding of the physics of GPS working is of little concern to the surveyor, who most of the time does not interfere with the data capture. The non-interference of the surveyor as regards the capture of data deceives many surveyors into thinking that the GPS is errorproof as no human errors are incorporated (unlike say in a theodolite traverses). For the surveyor however, errors in any measurement and the reliability of any such survey measurement has to be evaluated and understood clearly. There is the need for a clear understanding of the processing of GPS data and the results obtained from a GPS processing report. These results need to be interpreted rightly in order to give a clear understanding between the surveyor and the client and all users of the result
Event: XXIII International FIG Congress : Shaping the change
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