India’s Defense Research and Development Organisation (DRDO) has successfully integrated and tested the Surface Wave Over-The-Horizon Radar (SWOTH-Radar). This advanced radar system detects maritime and low-flying aerial targets up to 500 kilometers away, surpassing the limitations of conventional radars that rely on line-of-sight capabilities. Utilizing high-frequency surface wave propagation, the SWOTH-Radar’s signals can navigate the Earth’s curvature, thereby extending its detection range beyond optical horizons.
The bi-static radar configuration, which uses separate coastal sites for transmission and reception, enhances detection sensitivity while minimizing interference. Notably, the SWOTH-Radar is adept at detecting stealth vessels and low-observable aircraft due to its advanced signal processing and longer wave propagation. This all-weather and resilient system significantly boosts India’s maritime domain awareness and strategic capabilities.
The SWOTH-Radar not only broadens India’s surveillance footprint but also protects vital sea lanes and enhances deterrence against stealth intrusions. As an indigenous development, it complements India’s goals of technological self-reliance and reduces dependence on foreign systems. With its integration complete, the next phase will involve extended trials in real-world conditions and linking its capabilities with naval operations for improved maritime security.
