How Pilot Lands in poor visibility

I am an Aircraft Engineer with more than 35 years of experience.

An instrument landing system (ILS) enables a pilot to land an airplane when the pilot cannot see the runway. It is a radio navigation system which provides aircraft with horizontal and vertical guidance during landing and, at certain fixed points, indicates the distance to the reference point of landing.Once established on an approach, the pilot follows the ILS approach path indicated by the localizer and descends along the glide path to the decision height. This is the height at which the pilot must have adequate visual reference to the landing environment like runway or runway lighting to decide whether to continue the descent to a landing; otherwise, the pilot must execute a go around , then try the same approach again, or divert to another airport.
#ILS
#HowAircraftLandsinPoorVisibility
#InstrumentLandingSystem

[MrSuzuki]

There is a mistake here. For Categories llla and b there is NO decision height, now known as Decision Altitude. Minimums for those approaches are based solely on RVR, or Runway Visual Range. I have flown many Cat ll and lllb ILS approaches before retiring age 65 from a major airline.

[fazda]

Good video. Google made it sound confusing

[althafharis]

Found informative. Do we have cat 3 in CIAL?

[adonisaseem]

Doesn't provide the info I'm looking for.. what do you mean "in cat1 aircraft can decend to a decision height of 200 feet"?? that sounds incomplete/inconclusive. Do you actually mean "in cat1 aircraft can decend to a decision height of 200 feet with autopilot mode and post that pilot has to disengage AP and manually control till landing?