In the realm of navigation and geolocation, accuracy is paramount. While traditional Global Positioning System (GPS) technology has revolutionized the way we navigate and track locations, it has its limitations, particularly in scenarios where high precision is required. Differential Global Positioning System (DGPS) emerges as a solution to address these limitations by significantly enhancing the accuracy of GPS-based location finding. This essay explores the principles of DGPS, its applications, and how it can be effectively utilized for precise location determination.
Understanding DGPS:
Differential Global Positioning System (DGPS) is an augmentation system designed to improve the accuracy of GPS positioning. It operates by comparing the positions determined by GPS receivers with known positions obtained from reference stations located at accurately surveyed points. By measuring the difference between the calculated and known positions, DGPS corrects the errors introduced by various factors such as atmospheric interference, clock inaccuracies, and signal multipath effects.
6. Mapping Procedure
Setting up control points using DGPS
Using above control points getting traverse points for different locations of IIT Jammu
using Total Station.
Retrieving the data from TS and storing it in csv file with appropriate labelling of
points.
Plotting the above points in QGIS 3.28.5.
Classifying different points and doing featuring mapping.
After featuring plotting Contours using Raster.
Removing contours from buildings and other obstructions.
After exporting the file preparing a map with adequate map grids.
7. Elements of topographic
map
Scale
Direction of Geographical North
Point Coordinates
Symbols Used
Contours
Legends
Grids
