Quote:
Originally Posted by banryu79
Mmm... I didn't thought about it (and didn't know it or read it before) 
I'm not sure to have understand you well... Let's try with an example.
We are on course 000 and there is (Truth on) a single surface platform at general bearing 75... (Truth off now) and we pick it up on the towed array and also on the spherical array. Well, are you teling that we are picking it up in two sligthly different bearings (with respect to the two different sonar arrays)?
(Forgive me if the choosen 75° bearing is misleading because it doesn't fall inside the scanning range of one of the two sonsar array, I do not remeber the correct ranges ATM). |
I'm pretty sure that bearing is out of the baffles for both arrays.
But, yes! If you classify the same contact with the different arrays, you will have slightly different bearings. Obviously at closer ranges this difference will be more pronounced. Also at closer ranges, you can use this difference in bearings to give you a loose approximation of range to target. If you zoom in really close to your ownship on the navmap, you will see that the lines of bearing from the towed and the spherical/cylindrical originate from different points.