Smart India Hackathon 2026 · SIH26050 · DRDO · Team leader, GOODFELLASS
Terrain-Aware Counter-UAS System
The problem
At 4,500–5,000 m, ridges block line of sight and fog and snow blind optics. Hardening the hardware can’t fix that, so the system senses at wavelengths terrain and weather don’t block.
What we built
- A full-scale 8-microphone nested acoustic array, designed to hear rotors past a ridge; built and tested at sea level
- A satellite forward-scatter corridor gate that flags drones crossing mountain passes (designed)
- Fixes for two altitude errors: a sound-speed bearing bias of up to ~12° and a ×1.29 rotor-tone shift