Survivability of carriers, a near future realistic threat?
The new US DoD SDA, Space Defense Agency, planning to field low earth orbiting, LEO, constellation of dozens of satellites to detect and target ships providing the beyond-line-of-site targeting for ground and ship based weapon systems eg anti-ship missiles, as well as tracking of advanced missile threats such as hypersonic glide weapons. To launch in 2022 to demonstrate capability to share data using the venerable Link 16 to start from space to Navy ships.
SDA plan to use LEO between 800 and 1,000 kilometers and a few hundred kilograms and cost in the tens of millions of dollars each and expects its architecture to consist of thousands of satellites for its seven different layer of systems including the detect and target layer.
Other companies LEO satellites with synthetic aperture radar / colour video eg UK Carbonite-2, Finnish Iceye <100 kg, US Capella Space, aiming to reduce cost and to the size of a shoe box, current missions such as to track fishing boats so as to pinpoint the large number illegal trawlers fishing in protected waters, 30 satellites said to give world wide coverage fifteen times a day.
The high numbers, hundreds, thousands in LEO will enable them to have a much higher probability to survive attack from anti-satellites and be relatively easily replaced than the limited number of big satellites like the GPS at 2K to 3k kg each which take years to build. Expect operational problem will be in downloading info from satellites, analysing data and communicating targeting info to ships in limited time window for anti-ship missile seeker basket to be effective when reaches last known position of target when fired from ship or aircraft.
Don't doubt China will be building similar system, one question is how will warships eg carriers-QNLZ/PoW be able to defend themselves against being targeted based on LEO reconnaissance satellites as they have no way of taking them all out, even if it had radar capability to target the satellites in LEO at 800-1,000 km (the radar RF emissions would be another big red flag to Chinese to say here I am) and possibly targeted by a very long range Meteor variant, with its limited numbers and costly, stock would soon be exhausted, China would just launch another rocket with up to sixty (as SpaceX) or so new low cost LEO satellites.
PS Musk's SpaceX planning with its Starlink for world internet access to launch a possible max of 42,000
227 to 260 kg satellites in LEO ~550 to 1,100 km , launched 182 to date, astronomers complaining numbers will seriously degrade their observations from earth based astronomical observatories.