FM–SM Microwave Link Planning using HRSI & DGPS (2008) NWDA, Bhubaneswar

Project Overview

This project involved the planning and feasibility assessment of a long-distance FM–SM microwave communication corridor for NWDA, Bhubaneswar. The objective was to establish an uninterrupted, technically viable microwave link across a 462 km stretch by analysing terrain characteristics, line-of-sight (LOS) conditions, and potential obstructions using advanced geospatial techniques. The study supported strategic communication infrastructure planning in complex and varied terrain conditions.

Scope of Work

The assignment covered end-to-end geospatial planning of the microwave corridor, including satellite-based terrain assessment, precise ground validation, and analytical modelling to determine optimal alignment and relay locations. The scope included identification of suitable tower locations, assessment of Fresnel zone clearance, and evaluation of terrain-induced signal constraints across the full corridor length.

Methodology & Technology

High-Resolution Satellite Imagery (HRSI) was used to analyse surface features, terrain morphology, land cover, and potential physical obstructions along the corridor. DGPS-based ground surveys were conducted to generate accurate elevation control points and validate the Digital Elevation Model (DEM). The integrated DEM was then used for detailed line-of-sight analysis, profile generation, and microwave path feasibility assessment.

Key Technical Activities

• Corridor-level terrain profiling using satellite-derived DEM

• DGPS field surveys for elevation validation and accuracy enhancement

• Line-of-Sight (LOS) and Fresnel zone clearance analysis

• Identification of optimal microwave tower and relay station locations

• Obstruction and terrain interference assessment

• GIS-based visualization and alignment optimization

Deliverables

• DGPS-validated Digital Elevation Model (DEM)

• LOS and path profile diagrams for proposed microwave links

• Corridor-level feasibility maps and GIS layers

• Technical planning reports with site-wise recommendations

• Geospatial datasets for future network expansion and planning

Project Impact

The project enabled NWDA to make informed decisions on long-distance microwave communication deployment with reduced technical risk and improved reliability. By integrating satellite data with precision ground control, the study ensured accurate terrain modelling, minimized signal obstruction risks, and supported cost-effective infrastructure planning over a large geographic extent.

Final Note

This project demonstrates SpatiEdge’s early capability in integrating satellite imagery, precision DGPS surveys, and GIS-based analytics for critical infrastructure planning. The work reflects a strong foundation in terrain analysis, communication corridor design, and decision-ready geospatial intelligence for national-level institutions.