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Originally Posted by OKO
Henson just told you it is NOT a realistic feature, Tigerfish  |
He didn't say that. He just said that one of the fundamental assumptions of TMA is that the target is at the same depth as the searcher.
There are some tricks that you can use to make an educated estimate of target depth. With some short ranged sonars, transmission loss is accounted for entirely by nearfield effects. By noting how quickly targets fade in and out, and knowing one's own hydrophone depth, one can take advantage of the the near field Lloyd mirror effect to guess at it the target's depth.
There's all kinds of tricks one can use. If one has a good estimate of transmission loss, one can do all kinds of things. Unfortunately, in DW, the way it represents things is too simplistic to do this kind of thing.
It's probably just as well, because to get a good measurement of TL means sitting down with a computer and having it solve a parabolic equation. And you guys think me playing the game with a spreadsheet ready is intense! HA!