054B/next generation frigate
- Thread starter Blitzo
- Start date
antiterror13
Brigadier
Radar is the most important part for warship and possibly the most expensive too, so very much related
Do you have any objection?
My understanding is that SMART-L which the S1850M is modified from, consists only of 24 linear arrays. That's 24 linear elements, of which 16 is used for transmission. This is like an AESA type of FRESCAN array, an entire element is shaped like a blade with a wave guide that goes from end to end. This kind of array only electronically scans up and down, and is mechanically turned for the horizontal, which is about 12 RPM. This type of array is not uncommon for long range search. In terms of range, against patrol aircraft it's about 400km, which isn't any better than SPY-1 or Type 346, though ballistic targets are up to 2000km, but space has no attenuation. I am not sure and I don't think that can be used for engagement without queuing another radar. As a matter of fact, the Sachsens are upgrading by replacing their SMART-Ls with Thales NS100 or NS200 S-Band radars, reinforcing the theme that S and X bands are the best combo for warships based on design choices. L bands in general being phased out of service along with the last of retiring Ticos with the SPS-49, which is used as a secondary radar on top of the SPY-1. The question for the Type 45 is whether the pair of X-Band navigation radars it has on the main mast has any dual use capability, that can pick up low flying objects. The Burke has an S-Band navigation radar, SPS-67 (I can be wrong on the exact designation) that can also pick up low flying objects, and this being on a high mast has a better radar horizon than the SPY-1 arrays, although data will only be 2D.
The fact 054B has effectively four faces, two on the main dual face radar, another two on the secondary dual face on the rear mast. With the second being an X-Band it definitely will have fire control quality. As a replacement for the Type 364 I expect the radar to have a high rotational speed. The Type 364 has a rotational speed of 60rpm, the dual face Type 368 can have 30rpm x 2 due to the two faces.
The Type 055 definitely has eight faces if you count the secondary array set on the mast, while the 052DG has six, if you count the secondary dual face on the top mast. In addition, the 052DG has a VHF array that has a double faced 2 x 8 grid, along with an OTH X band radar and the gunnery radar. The Type 366 OTH antiship radar works by rotation, the front array being active and the second passive, and it's modified from it's Mineral-M original by allowing for the detection and tracking of low flying objects.
PESA cannot do different PRF among elements like AESA. Unlike AESA, PESA only has a single centrally controlled high powered amplifier.
They advertise the S1850M's "target designation" capability. So I think it can be used for engagement indeed, at least as long as the munition is active-radar guided. The E-2D (and very likely the KJ-500 too) work at an even lower frequency and can mitigate for sea clutter and low resolution. So the S1850M may too. I agree with the rest.
They can differ PRF between pulses. That's what I meant. PESAs, if we exclude hybrid designs, always emit a single beam.
Yeah I'm reporting all the posts as OT because they are.
The prior discussions about radar technology and configuration is not irrelevant to 054B given its radar arrangement is somewhat worthy of clarification for those unfamiliar to the topic, but I also think the discussion has mostly concluded to a reasonable point. Further posts on the matter in this thread will be deleted and people can find a different thread to talk in if they want to continue.
Doesn't show much change.
asif iqbal
Lieutenant General
It's been a while: an image update on the Hudong unit.
beautiful just beautiful