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