A single lookup table can be built corresponding to one nominal search duration, or a family of lookup tables can be built, wherein each table has values of integration interval and {HEAD ~ number} of {TAIL ~ non coherent passes} corresponding to a different search duration 
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A single lookup table can be built corresponding to one nominal search duration , or a family of lookup tables can be built , wherein each table has values of integration interval and { HEAD ~ number } of { TAIL ~ non coherent passes } corresponding to a different search duration
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