Wouldn’t it be hard to lock it and shoot it at such a distance ? Knowing it’s size and it’s relatively lower speed ?
No not really. It has an IIR seeker. Optically it will track and recognise its target. It will lock on to the IR shape of the target.
How an IIR Seeker Functions:
Thermal Imaging (Focal Plane Array): Modern IIR seekers use a grid of sensors (focal plane array) that detect thermal radiation
Passive Detection: They do not emit energy (unlike radar), making them "passive," meaning the target often cannot detect it is being tracked.
Lock-on and Tracking: Before launch, the seeker "locks" onto a specific thermal shape. During flight, the guidance system continuously analyzes the image to keep the target centered.
Distinguishing from Decoys: Due to high-resolution imaging, IIR systems can distinguish between an aircraft's engine heat and decoy flares, making them significantly harder to deceive than older infrared technologies.
Such high-precision munition systems typically utilize a combination of advanced optical and thermal methods to achieve a "lock".
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