Well I think the question I would ask is why we think it is unlikely for the JH-7/A to receive an VLRAAM payload in the first place?
maybe JH-7A lacks the communication equipment for the CeC data?
Well I think the question I would ask is why we think it is unlikely for the JH-7/A to receive an VLRAAM payload in the first place?
maybe JH-7A lacks the communication equipment for the CeC data?
This reminds me of the Russian proposed Novator KS-172 missile which was supposed to be based on Buk SA missiles.
It makes great sense since the Chinese already had the Buk technology and this way they can more or less easily make a long range air-to-air missile. I suspect they use the JH-7/A simply because it is more available. The J-16s are immediately put into front line duty I expect this missile to eventually be available on the J-16 platform mainly and for it to replace the JH-7/A in the long term.
Another thing to keep in mind, which applies to ALL long range anti air missiles, be they surface launched or air launched, is tracking. The targets, naturally, need to be tracked. But also the missiles themselves need to be tracked. And then that tracking data must be used so the missile is getting mid-course corrections. That's the only way to ensure true precision over long ranges.
And best tracking results are achieved with X band radars. S bands and up are generally less fit for tracking. E2D is sometimes mentioned as possible platform for target tracking and then handing over data to missiles. Sure, it can do that. But it's not AS GOOD of a tracking platform as an X band radar would be. Heck, with its UHF band, it's not nearly as good of a platform as a S band radar would be. If it was, we'd see pretty much all long range SAMs switch to such bands. But they're generally using X bands, occasionally C bands and sometimes, as a further compromise, S bands. (like on ships where a single radar is forced to do both long range early warning scans and target tracks)
Now, there are developments that help mitigate some of the above. Larger missiles can fit larger and more powerful radar seekers. Which may enable them to lock onto the targets themselves from fairly long distances. Which then means super precise tracking by third party platforms may not be as crucial. Furthermore, tracking of own missiles may be done, instead via radar, via GPS and datalinks, where the missile determines own location in real time, basically it tracks itself, and sends its location via datalink to a platform which can then facilitate updated course correction data to be sent to it.
In any case, a robust system would need multiple tracking radars, be they on the ground or in the air, and multiple course correction emitter platforms. (Most probably the two would be the same platform, really) And a satellite navigation network would need to be up and running at all times. Without satnav tracking, using various S band radars would likely not work over long ranges. So X band radars would have to be used.
And then there's the question of numbers. Using S bands probably means awacs planes or other large planes. Those are far readily available in numbers. On the other hand, X bands are readily available on fighters in large numbers. Especially if a large fighter jet can afford a powerful radar, scanning everything in its view cone to 300-400 km away.
Anyway, I fully believe shared network targeting is coming to war theaters very soon, and in some ways it's already starting to be fielded.
提问:所谓PL-20的A射B导,是不是战机发射后,预警机导引?
回答:显然千20导。
提问:千20的雷达太远开机导引,不会破坏隐身吗?
回答:千20的雷达肯定有低可截获探测模式,N秒扫一次,通过数据链把数据刷新给导弹,导弹在进入目标20公里左右,主动雷达导引头开机扫描锁定,后面就它啥事情了。
提问:低截获模式不是靠消除旁瓣么?怎么是N秒一次?
回答:消旁瓣只是其中一种技术,还有扩频压缩峰值,还有高速扫描等等方式降低被敌方电子设备截获的概率。这里打个比方,就是你拿着电筒一直点亮,人很快就知道你的存在了,你要是两秒钟亮0.1秒,人就把你当噪声过滤了。但是你还是能确认敌人的位置。
I think you meant LPI (low probability of interception).Post from Weibo claims that PL-20 can be guided by J-20's radar in LRIP mode following launch by another aircraft.
Perhaps, but nothing in that post was unreasonable. Scouting and guiding ordinance behind enemy lines is a natural role for a stealth fighter like the J-20.Please do acknowledge that this is never a reliable source.
I think you meant LPI (low probability of interception).
Perhaps, but nothing in that post was unreasonable. Scouting and guiding ordinance behind enemy lines is a natural role for a stealth fighter like the J-20.