What key technology enables advanced targeting in Fighter Block 4 fighters?

The key technology that enables advanced targeting in Fighter Block 4 fighters is AESA (Active Electronically Scanned Array) radars. AESA radars have revolutionized aerial combat and surveillance systems due to their ability to rapidly scan multiple targets, track them simultaneously, and provide high-resolution data. This technology allows for better detection, tracking, and engagement of both air and ground targets compared to traditional radar systems.

AESA radars utilize a grid of multiple small transmit/receive modules, which can steer their beams electronically rather than mechanically. This capability allows for much quicker adjustments in target acquisition and a reduced likelihood of being jammed. As a result, fighters equipped with AESA radars can gain an upper hand in combat situations by accurately acquiring and engaging targets under diverse operational conditions.

While infrared search and track systems are beneficial for various targeting scenarios, they do not match the comprehensive capabilities of AESA radars in terms of range and multiple target tracking. Conventional radar systems, although foundational, lack the advanced features and performance of AESA technology. Passive sonar systems are not relevant in air combat as they are designed for underwater applications. Therefore, AESA radars stand out as the essential technology for advanced targeting in modern Fighter Block 4 aircraft.