公开(公告)号：US09858304B2

公开(公告)日：2018-01-02

申请号：US14671614

申请日：2015-03-27

Applicant: RAYTHEON COMPANY

Inventor： Eran Marcus ,  David U. Fluckiger ,  Brian F Boland

IPC: G06F17/30 ,  G06F17/15 ,  G01S17/10 ,  G01S7/486 ,  G06F17/14

CPC classification number: G06F17/30336 ,  G01S7/486 ,  G01S17/10 ,  G06F17/142 ,  G06F17/15 ,  G06F17/3053

Abstract: A method for computing a cross-correlation between a first sequence and a second sequence includes: generating a first index vector based on the first sequence, the first index vector including a plurality of first elements, the first index vector excluding indices of zero valued elements of the first sequence; generating a second index vector based on the second sequence, the second index vector including a plurality of second elements, the second index vector excluding indices of zero valued elements of the second sequence; computing, on a processor, a plurality of pairwise differences between each of first elements of the first index vector and each of the second elements of the second index vector; and binning, on the processor, the plurality of pairwise differences to generate the cross-correlation of the first sequence and the second sequence.