20. The correlator of claim 18 wherein said predetermined plurality of received words is two received words, wherein 2N values of said ramp weighted segment sums are stored, scaled and accumulated, and wherein 2N-1 values of said uniformly weighted segment sums are stored, scaled and accumulated.
20. The correlator of claim 18 wherein said predetermined plurality of received words is two received words, wherein 2N values of said ramp weighted segment sums are stored, scaled and accumulated, and wherein 2N-1 values of said uniformly weighted segment sums are stored, scaled and accumulated. 21. The correlator of claim 20 wherein said second storing means comprises means for scaling said stored uniformly weighted sums by appropriate integers ranging from 1 to N.