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Old 09-20-05, 08:57 PM   #11
SeaQueen
Naval Royalty
 
Join Date: Jun 2005
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Quote:
Originally Posted by Amizaur
Question - what SHOULD be blind zone of surface ship's active sonar ? Should it be only 60deg like in case of FFG and all in game ships currently (300deg coverage) ?
Or maybe active should work only in 180, 200 or 240 deg front cone ?
It would depend on the beam pattern.

In real world sonars, there exist multiple modes, each with different beam patterns. They allow one to adjust the sonar to make the most of the environment. One mode might be CZ mode, with a beam pattern to take advantage of a convergence zone. Another might be BB mode, for bottom bounce, intended to take advantage of a bottom bounce. Another would be surface duct mode, optimized for that. Each would have a different "blind spot" on account of the different beam pattern. Maybe in environment A it's better to focus the beam down more with an increase in array gain toward the center of the beam lobe to compensate for greater transmission loss, while in environment B you don't need to do that, so you accept less gain, but scan a wider angle.

DW has a much simplified model of this with it's omni, single beam, and omni rotational modes. In real sonars, there'd be other stuff you could do too. Unfortunately, the only one for which it adjusts the "blind spot" is single beam mode.
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