Real time versus postprocessing

A brief outline of the most commonly used GPS positioning modes was presented in Section 9.7, with a special emphasis on DGPS services and the growing network-based RTK solutions and applications. In summary, Figure 9.17 provides an overview of the GPS positioning and data-processing strategies. Table 9.4 compares the real-time and postprocessing scenarios, and Table 9.5 compares the accuracy of various DGPS modes with the static and RTK GPS accuracy. Further discussion on GPS accuracy is provided in the next section.

GPS Positioning Strategies

GPS Positioning Strategies

Kinematic

FIGURE 9.17 Global Positioning System (GPS) processing strategies. (Modified from Langley, R. B., GPS World, September, pp. 70-74, 1998. With permission.)

Kinematic

FIGURE 9.17 Global Positioning System (GPS) processing strategies. (Modified from Langley, R. B., GPS World, September, pp. 70-74, 1998. With permission.)

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