052C/052D Class Destroyers

J

jvodan

Junior Member
Registered Member
thinkerls said:
Will the obstruction between the radar and the mast affect the detection effect?View attachment 129732
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nope though may attenuate it a little. Electromagnetic radiation (radar, radio waves ,light,etc) is a wave not a straight line, I would assume the beam forming algorithm has to adjust to deal with the obstruction.
The radar is not like a torch light. The phase and strength of the signal sent from each element is set to produce the 'image' of the beam in the distance.
I say image because from an optics perspective the radar array produces the diffraction pattern of the image that is projected in the distance. Back in about 1990 I had a lecturer who delighted in deriving the mathematics for PESA radar for us students simply because it was classified tech. As he had solved the problem himself independently he was not subject to the classification.

I would guess the shape of the beam would be different, though not the fine grain edge (accurracy) because the higher frequencies in the 2d Fourier transform of the beam image are set by the outer elements. note frequency as in spatial and not the radar frequency.

the antenna produces the 2d spatial fourier transform on the beam image
 
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by78

by78

General
Image update from Dalian.

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T

thinkerls

Just Hatched
Registered Member
jvodan said:
nope though may attenuate it a little. Electromagnetic radiation (radar, radio waves ,light,etc) is a wave not a straight line, I would assume the beam forming algorithm has to adjust to deal with the obstruction.
The radar is not like a torch light. The phase and strength of the signal sent from each element is set to produce the 'image' of the beam in the distance.
I say image because from an optics perspective the radar array produces the diffraction pattern of the image that is projected in the distance. Back in about 1990 I had a lecturer who delighted in deriving the mathematics for PESA radar for us students simply because it was classified tech. As he had solved the problem himself independently he was not subject to the classification.

I would guess the shape of the beam would be different, though not the fine grain edge (accurracy) because the higher frequencies in the 2d Fourier transform of the beam image are set by the outer elements. note frequency as in spatial and not the radar frequency.

the antenna produces the 2d spatial fourier transform on the beam image
Click to expand...
Thanks
 
Cloud_Nine_

Cloud_Nine_

Junior Member
Registered Member
tamsen_ikard said:
Is the type 052 or type 055 capable of launching anti-Torpedo like the Russian
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Without it defending against a sub launched torpedo seems very difficult.
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Both are equipped with towed torpedo decoys. Hard-kill ATT systems are pretty rare. USN planned to equip their carriers with ATTs but decided not to. Most navies don't bother I feel like...
 
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