Pokemonte13
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So I guess alp 400 together with yirad will be the last elements to enter service as alp 500 is already in service/production
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Yes, they are probably the final ground-based sensors together with the passive radar system and STR-800G orbital tracking radar. There will be satellite-based early warning and SAR sensors. I guess we can also count UAV and airplane-based early warning radars, they are all interlinked.
What is the longest distance these radars can detect an f35 and send data to AD or fighters? Any reasonable guesses?
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Orbital tracking radar is not useful for the detection of F-35. Its purpose is to detect and track items orbiting Earth.
Passive radar can detect F-35 from several hundred kilometers in favorable conditions. But it is an inherently different sensor compared to active radars and has caveats.
YIRAD is for the detection of ballistic missiles and hypersonic targets at high altitudes. It is not a system tailored towards F-35.
ALP-400G VHF radar can detect F-35 from several hundred kilometers, but it can't provide a precise firing solution.
Passive radar can detect F-35 from several hundred kilometers in favorable conditions. But it is an inherently different sensor compared to active radars and has caveats.
YIRAD is for the detection of ballistic missiles and hypersonic targets at high altitudes. It is not a system tailored towards F-35.
ALP-400G VHF radar can detect F-35 from several hundred kilometers, but it can't provide a precise firing solution.
Game-changing technology in the sky: ASELSAN MURAD AESA Nose Radar.
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Murad-600A will have 4x max output power and 4x aperture area compared to Murad-100A. If you do the math (radar equation) in theory this changes will increase the maximum range by 2.828x, so we can safely assume Murad-600A to have at least 2.5x range compared to Murad-100A.
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4000 TRM?
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2304 TRM for the nose(144 subarray, 16x TRM per subarray) compared to 1152 TRM for Murad-100A(72 subarray 16x TRM per subarray) 2x peak power per TRM compared to Murad-100A (30W vs 60W) for a total of 4x max power output. Subarray tiles will be bigger.
Cheek and aft radars rumorud to have 576 TRM/ 36 subarray. 3x576+2304=4032 TRM modules
Dual-band (S/X) radar is planned for block 30
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Thanks, That make sense. But could you tell how did you calculate 2.8x maximum range increase? I am seem to be getting 2x only (For the nose array comparison) using the formula AESA radar calculator developer gave.
((2304/1152)^3*(60/30))^(1/4)
=2.
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Both aperture area and output power affect the radar range.
The number of TR modules alone has no direct effect. The number of TR modules is only important if it affects the total output power or aperture size.
Rmax: Maximum detection range (meters)
Pt: Radar transmitter power (watts) (1x for radar 1, 4x for radar 2 1152X30 vs 2304X60)
G: Radar antenna gain (dimensionless)
λ: Radar signal wavelength (meters, same for both radars so not important when comparing)
σ: Radar cross-section / RCS of the target (square meters, same for both radars not important when comparing)
Pmin:Minimum detectable signal / receiver sensitivity (watts, I assume the same for both radars unless Murad-600A is more sensitive)
Ae: Aperture area (1x for radar 1, 4x for radar 2)
We rearrange formula 1 and write 1 in place of λ, σ. Since Pmin is also the same for both radars, the denominator can be removed.
Rmax ∝ (Pt.G^2)^1/4
G is directly proportional to Ae because λ is same for both radars.
Rmax ∝ (Pt.Ae^2)^1/4
Increase Pt to 4Pt and Ae to 4Ae (4Pt.4Ae^2)^1/4
(4Pt.16Ae)^1/4= (64)^1/4= 2√2= 2.828
When everything else is the same a radar that has 4x output power and 4x aperture area has 2.828 more range compared to the baseline radar. Of course this doesn't take into account real life lossess that might come with a bigger aperture size and more power pushed down a module.
If we only increase power 4x detection range only increse by 4^1/4= 1.41 times
If we only increase aperture area 4x detection range increase by (4^2)^1/4= 4^1/2= 2 times.
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