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Square nozzle does help reduce IR signature, the Russian did an experiment on the Su-27 with square nozzle and results was very promising. The trade off is that square nozzle reduce thrust and are much heavier than round nozzle. That why RUS didn't use it on PAK-FA and US changed to serrated...

Don't you mean pulse compression? I didn't say track before detect is the only way to improve detection probability, i only explain what it is

When a radar scan a volume of space, it receives not only the reflection from targets but also reflection from natural objects such as birds, insects, ground, background radiation..etc. To ease the computational process and avoid cluttered or whiten the whole screen, most radars apply a...

That is wrong .A normal radar can easily create image of what they detect as long as you either a big enough gain ( aka small enough beamwidth ) or you used a time-based solution called synthetic aperture: Here are some image created by SAR:

There are various definition for a "photonic radar" so it can be very confusing for most people The first is Phased array radar where ferrite or bit phase shifters are replaced with Optic fiber, thus making use of "True time delay" principle. Called as Photonics true time delay. The advantage...

1- off boresight has nothing to do with ionospheric reflection , you are meant to say over horizon capability 2- for your radar wave to reflect off the ionosphere , and getting over horizon capability , you need very very low frequency generally between 10-20 MHz , ways lower than what S-400 use...

If it is wrong then i still do , it doesn't matter if the data you get came directly from Almaz-Antei ( which i doubt , they do ) , they cannot and will not go against physic laws.By the way , why do you have no problem thinking the value published by LM is just marketing nonsense, but at the...

No it cannot ,NIIIP 91N6E height is less than 15 meters , for target flying at 12 km ( common cruising altitude ) , the maximum radar horizon is about 460 km , your fire control radar wont see anything further than that regardless of how powerful it is ,and if by aerodynamical target you mean...