Terrain Impact Analysis and Mission Effectiveness Evaluation for Hybrid Employment of Vehicle-Mounted and Portable EW Assets

This study evaluates the terrain-dependent performance of a hybrid electromagnetic warfare(EW) architecture combining vehicle-mounted and portable assets. A DEM-based battlefield(20 km × 15 km) with elevation levels up to 1000 m is used to analyze terrain-induced line-of-sight degradation. Detection probability is modeled using an SNR-based logistic function, while jamming effectiveness is assessed with a J/S threshold criterion. Mission effectiveness is evaluated through Monte Carlo simulations under both static and dynamic asset attrition scenarios. Results show that vehicle-only deployment suffers significant degradation in detection and mission effectiveness as terrain relief increases, whereas the hybrid configuration maintains more stable performance through spatial node diversity. From a mission engineering perspective, these findings indicate that EW effectiveness in complex terrain depends strongly on spatial geometry, offering operational insight for distributed EW deployment and terrain-aware mission planning.