COMPRESSION OF COMMUNICATION SIGNALS WITH EXPANDED FORWARD-SEQUENCE SPECTRUM

摘要

FIELD: structures for compressing communication signals with expanded forward-sequence spectrum. SUBSTANCE: in one of compression structures adopted complex samples of separated elementary pulses are negated for sequence deleting unit in compliance with processed phase of complex expanding sequence; in the process cophasal and quadrature values of samples are relatively switched in compliance with processed phase. In other compression structure adopted complex samples of separated elementary pulses are processed in logarithmic form in sequence deleting unit including addition of expanding sequence phase to detected phase, and then resultant complex signal is inverted into Cartesian coordinates. In one more structure sequence deleting and correlation are made in logarithmic form with arithmetic averaging of amplitudes and phases of resultant complex signal followed by conversion to Cartesian coordinates. In still other compression structure sequence is deleted in logarithmic form using cyclic averaging. EFFECT: simplified compression process. 22 cl, 10 dwg