ACOUSTO-OPTIC RECEIVER Russian patent published in 2008 - IPC H04B10/06 H04J14/00 

FIELD: radio engineering.

SUBSTANCE: invention may be used for detection of radio stations airing, which have pseudorandom operational frequency readjustment and determination of the used frequency network. Acousto-optic receiver contains antennae (1), frequency converter (2), laser (8), collimator (9), Bregg cell (10), lens (11), photo detector matrix (12) and recorder (13). Frequency converter (2) is multi-channel, consisting of m lines and n columns. Each line contains narrow-band filter (3_ij) and (n-1) links. Each link is comprised of heterodyne (4 _ij), mixer (5_ij) and amplifier (6_ij) of intermediate frequency. Intermediate frequency amplifier outputs of column (n-1) are connected with piezo-electric converter of Bregg cell through logic element OR.

EFFECT: possibility of simultaneous and parallel detection and receipt of several short-term signals appearing at different frequencies and belonging to controlled radio station with pseudorandom operational frequency readjustment.

3 dwg