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lilibay
informationdissemination.blogspot.com/search?q=ASBM+
Over-the-Horizon Backscatter Radar [OTH-B]
China may have as many as three Over-the-Horizon (OTH) sky-wave radar systems that China aspires to use to target aircraft carriers. These systems could be used in an early warning capacity. China also may have deployed at least one surface-wave OTHR.
ASBM development
It looks like DF-21 is the missile that ASBM is based on. It's range of around 2000 km would perfectly cover the areas where future conflict is likely to be fought. Its range also would cover most of the areas that China's OTH-B radar would cover.They have put a MaRV warhead on DF-21 for maneuverability. They have also added a new multi-mode seeker that apparently has an active, passive radar and infrared seeker (I'm not sure how that works)
The blog basically listed 5 sources of targeting data and they are;
-Reconnaissance Satellites :the blog did mention that China has used FY-2 series of satellites to track movement of targets
-Elint satellites - It mentioned something like USN's White Cloud Spaceborne ELINT System.
-OTH Radar - Has a range of 800 to 3000 km. The accuracy in targetting is around 20 to 30 km. This can be improved to 2 to 3 km with improved algorithm. OTH radar can work with the recon satellites
-UAV - China does have a robust UAV program going right now including the XiangLong program
-Radio post - . The blog talked about working with elint satellites (which I don't think they have) to get the location of the carrier group through communications between ships and satellites/aerial assets. (This most confusing)
How does the launching/attacking process work?
The OTH radar will give the base initial idea of incoming fleet. This information would be combined with data of the recon satellites to provide a more precise and more accurate targeting data. The missile would be launched to the estimated position based on initial position + velocity In the cruising process, the missile would have to continuously communicate with the base through those new Data relay satellites (like TianLian-1 that they launched recently) to get more improve the precision. The ASBM will also likely veer off the path at this time, so it would need communication with Beidou-2 constellation in order to keep it on track. When it gets close to the target, the blog talked about 3 phases in its attack: high altitude guidance, high altitude gliding and low altitude guidance.Its general theme is slowing down the speed of the missile as it gets closer to the target to maybe give the seeker more time to lock on to target and make unpredictable movements to penetrate defense.
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Благодарю за информацию
Date: 2011-06-03 01:47 pm (UTC)Спасибо за инфу
Date: 2012-02-18 08:08 am (UTC)