Beyond GPS: Implementing Visual SLAM for Autonomous Drones in India's Urban Canyons
Beyond GPS: Implementing Visual SLAM for Autonomous Drones in India's Urban Canyons As India accelerates toward its goal of becoming a Global Drone Hub by 2030 , the biggest technical hurdle isn't flight time or payload—it's localization . In the dense "Urban Canyons" of Mumbai, Delhi, and Bangalore, GPS is often a liability rather than an asset. When satellite signals bounce off glass facades (multi-path interference) or vanish entirely between high-rises, drones need a way to "see" their way through. This is where Visual SLAM (Simultaneous Localization and Mapping) becomes the backbone of autonomous flight. Why GPS Fails in Indian Cities Indian urban environments are unique. You have a mix of high-rise corporate parks, narrow residential "gullies," and a chaotic density of overhead power lines. A traditional GNSS-based drone will often experience: Signal Shading: Total loss of satellite lock. Position Drifting: Multi-path errors that can...