Correct Answer: Option B) 1 & 3
BrahMos is an advanced supersonic cruise missile developed as a joint venture between India and Russia. Its guidance and navigation system incorporates multiple technologies for maximum accuracy:
Satellite Navigation in Initial Phase: True. BrahMos initially uses satellite navigation systems (including GPS and GLONASS) during its launch and mid-course phases to get accurate positioning data. This helps it navigate toward the general target area.
Relies solely on GPS throughout trajectory: False. BrahMos does not rely exclusively on GPS throughout its entire flight. This would make it vulnerable to jamming or spoofing. Instead, it uses a combination of guidance systems for redundancy and reliability.
Terminal Phase uses Active Radar Homing: True. In its terminal phase (final approach to target), BrahMos switches to active radar homing. The missile's onboard radar activates, detects the target, and guides itself precisely to impact, even if the target is moving. This "fire and forget" capability makes it highly effective against both land and sea targets.
BrahMos is known for its precision strike capability due to this sophisticated multi-tier guidance system that combines satellite navigation with active radar homing. The missile can hit targets with pinpoint accuracy even in complex battlefield environments.
