ACOUSTIC-WAVE RECEIVER Russian patent published in 1996 - IPC

FIELD: radio engineering; reception of complex signals and analysis of their spectrum. SUBSTANCE: acoustic optical receiver has antenna 1, frequency changer 2, first and second local oscillators 3,4, first and second mixers 5,6, first through fifth intermediate-frequency amplifiers 7-11, first, second, and third amplitude detectors 12,13,14, first, second, and third switches 15,16,17, laser 18, collimator 19, first, second, and third Bragg cells 20,21,22, first, second, and third lenses 23,24,25, first, second, and third photodetectors 26,27,28, first and second +90 deg. phase shifters, third and fourth mixers 31,32, sixth and seventh intermediate-frequency amplifiers 33,34, third +90 deg. phase shifter 35, first and second -90 deg. phase shifters 36,37, fourth +90 deg. phase shifter 38, fourth amplitude detector 39, videoamplifier 40, first adder 41, first comparison unit 42, fifth and sixth amplitude detectors 43,44, fifth switch 45, second comparison unit 46, second and third adders 47,48, fifth switch 49, fifth and sixth adders 50,51, fourth through seventh Bragg cells 52-55, fourth through seventh lenses 56-59, fourth through seventh photodetectors 60-63. EFFECT: enlarged functional capabilities. 2 dwg