Why Virupaksha or any Indian Systems integration into the su57 is a distant thought....and almost a non doable option
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See the core reason why the Su-30MKI cannot serve as an inspiration for modifying a Su-57 is cause of the evolution of avionics computing
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SU30 like jets utilize a Federated Avionics Architecture built around a standard multiplex data bus (typically MIL-STD-1553B)... In this, the radar, EW suite, and targeting pods each possess an independent processing computer...+++
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subsystems only talk to each other via finalized data products feeded so we can intercept the data bus, place an open-architecture interface like our mission computer we put and cleanly swap a Russian box for an Israeli or Indian sensor.
4/Su-57 uses a Integrated Modular Avionics (IMA) framework which uses a centralized processor called the IUS-57
So, Instead of individual computers for every sensor, raw data from all over the airframe is routed fibrptic directly into a central core.
5/The centralized IUS-57 executes the processing tasks, radar waveform generation, and electronic counter-countermeasures (ECCM) simultaneously within a unified software...
6/According to Tikhomirov Scientific Research Institute of Instrument Design the radar functions as unified under the the Sh121 Multifunctional Integrated Radio Electronic System (MIRES).
Not as a single entity
7/The system consists of five radars
N036-1-01: The main forward-looking X-band
N036B-1-01 (Left and Right): Two side-looking X-band cheek arrays (404 T/R)
N036L-1-01 (Left and Right): Two L-band AESA arrays mounted used for (IFF) and counter-stealth target
8/ software processing of the X and L signals is executed entirely within a shared computing inside the IUS-57.... So if Indian GaN radar (like Virupaksha) replaces the main radar it creates disconnect. Our radar operates on its own software logic, processing code, and profiles.
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Also modern jat have integrated ECM/ECCM suites so they need shared use of apertures between the radar and the EW suite. On the Su-57, the L402 Himalayas ECM suite uses just use its own dedicated antennas; it can do jamming signals through the N036 Byelka radar... ++
10/++This requirescomplex Waveform Interleaving. The central computer must mathematically time the transmission of radar pulses and EW jamming signals down to prevent the aircraft from blinding its own sensors or burning out its hardware components...(SENSOR DECONFLICTATION) ++
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Inserting a foreign radar into the nose we will need source code of the L402 Himalayas suite and the IUS-57 kernel, else Indian radar would be completely unsynchronized.....
12/The Su-30MKI has EW and extra sensors, but they are treated like independent add-ons:
The EW is in a Pod: If India wants heavy jamming on the Su-30, they hang an Israeli Elta or a Russian SAP-518 pod on the wingtips.
The IRST is a Standalone Eye: The OLS-30 Infra-Red Search
13/
SU57 has a 101KS Atoll electro-optical suite and the L402 Himalayas EW suite integrated into the whole system itself
101KS-V: The main Infra-red search and track (IRST) right in front of the cockpit.
101KS-U: missile approach warning sensors ++
101KS-O (DIRCM)
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++3 X Band + 2 L Band radars
See like If MAWS detects the flash of an incoming missile from the side,It tells the DIRCM laser to and blind the missile.
It can tell the N036 AESA radar (nose or cheek arrays) to instantly track +++
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Modern jets have a locked architecture... Mutiple radars... Different band... EW suite integrated+... Passive and active sensors all feed data to one thing... All work on 1 architecture... You can't place your architecture at one point...
SU30 gen was much simpler
To put Indian Radar and avionics as many demand
it means stripping out the central IUS-57 computer, all five radar arrays, and the entire L402 EW architecture, and rebuilding a new, unified ecosystem from scratch..
This only made sense if su57 was our main and only 5th gen
it means stripping out the central IUS-57 computer, all five radar arrays, and the entire L402 EW architecture, and rebuilding a new, unified ecosystem from scratch..