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bsq -> Airborne Passive Location (12/22/2013 9:40:30 AM)
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The routine for generating a location based upon passive data from an aeroplane is not correct - may be this is a limtation of the game engine or may be it is a problem with 'naval thinking'.
If a SLQ32 or UAT picks up a radar emission it will give a lob and and a location based upon the power level it receives so the stronger the signal, the closer the system thinks the emitter is. When it sees it again say 30 seconds or even a minute later, it can still only say well its over there and I think its that far.
When an airborne ESM or ELINT system picks up a contact, the first LOB is just that (its a case of its over there somewhere between me and the horizon). 30 seconds to a minute later the aeroplane is now several miles from where it was. The second LOB gets compared to the first and there is a cross cut. As time goes on (only a few to several minutes) the location gets refined down to a matter of a few miles or less.
So whilst for ships, a constant changing (increasing or decreasing) area of probability (CEP) is OK, for aeroplanes this is wrong, the CEP should always decrease to the point where (if you are firing HARMS) you have a point to aim at.
Of course if the sensor model does not/cannot support this then ok, but if it can be done, it should be done. It will mean that these (expensive) passive assets actually have a part to play in the game...
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