NASAMS 3 radar was updated but lost backscan

Would be cool if possible :P

So like some sort of backwards SAR / DBS, using the relative angular movement of the target against it?

No imaging takes place, it means increasing radar ability to diffirentiate between doppler signals

Additionally to above, increasing CPI to increase doppler resolution comes from fourier analysis, where tau = 1/f_d.
So in order to distinguish closer delta f_d, we need a longer observation time.

Was more reported on it? Like it not being supossed to cover the full 65° elevation range in a single 2s rotation. I don’t think it’s beneficial for game balance, but it’s technically ahistorical currently.

https://community.gaijin.net/issues/p/warthunder/i/Nyb8Edhbcfsv

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Yeah it’s basically a non-update: by doubling its scan speed but removing the the backscan,the NASAMS and the CLAWS retain their old scan speed lmao

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I think it might actually be a slight nerf

because iirc it was at 16 rpm not 15

the rpm now is 30

It was 15
image
4s per rotation so 15rpm
image

ok, idk where I heard the 16 rpm from

yes on live, on dev its 30 now
but backscan is gone

Yes, and that is correct now. Rear facing beam was should not have been a thing.

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idk how it should work exactly

but back-scan is mentioned plenty in documentation about the radar so that seems weird to me

Back scan is not the same as read facing beam, it was explained here.
Back scan is radar sending a beam in the direction opposite to the antenne rotation. In case of Sentinel, that will be up to 5,5° away from the antenne norm.
That feature is not in game right now.
There is no rear facing beam on a real radar, that was corrected. Why devs did it, they probably misunderstood what back-scan, but they corrected it now.

if thats true its still missing backscan, though i (and many others) had misinterperated what it meant doesnt mean its not missing

where does this limit come from? ive not seen it in any of the sources posted here

Yes, but that feature is missing globally, in all radars that have tha ability.


here you can see both usages of the back scan,
Search beam is pararell to the antenne face, while a backscan is used to verify target, so it allows the radar to confirm a target in one rotation, and to track already known target.

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would be relatively simple to fix i think by making the radar scan a width instead of just 1 line that would at least for WT simulate the backscan, though imma be honest calling that backscan is a bit misleading on the name

also on a slightly different note what is that rear facing radar for if not backscan