A machine implemented {HEAD ~ method} of simulating {TAIL ~ an acoustic received signal} arising from an acoustic source signal scattered by a target having a plurality of highlights, the method comprising the unordered steps of: 
of simulating
A machine implemented { HEAD ~ method } of simulating { TAIL ~ an acoustic received signal } arising from an acoustic source signal scattered by a target having a plurality of highlights , the method comprising the unordered steps of :
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