SURVEYING USING DRONE TECHNOLOGY AND DGPS INTEGRATION

This review paper concludes that surveying using drone technology and DGPS integration represents a major advancement in the field of modern surveying.                         Drone-based photogrammetry offers rapid, safe, and high- resolution spatial data acquisition, while DGPS provides the positional correction necessary to achieve accurate and dependable geospatial outputs. The combined system is capable of producing orthomosaics, digital elevation models, contours, and 3D models with accuracy suitable for a wide range of civil engineering applications. Compared with traditional methods, this integrated approach reduces survey time, minimizes manpower requirements, improves safety in difficult terrain, and provides richer digital deliverables. Although limitations such as weather dependency, regulatory constraints, battery life, and processing complexity remain, the overall benefits strongly support the adoption of this technology in modern engineering practice. Therefore, drone surveying with DGPS, especially when supported by RTK/PPK workflows and proper ground control, can be considered an efficient, accurate, and future- ready  solution   for  topographic   and    infrastructure surveying.

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