RADIO SIGNAL FREQUENCY METER Russian patent published in 2003 - IPC

FIELD: radio measurement technology. SUBSTANCE: invention can be employed as high-speed panoramic meter of carrier frequency of radio signals in wide-band communication, radio navigation and radio intelligence systems. Radio signal frequency meter has laser, collimator, signal acoustooptical deflector, integrating lens, auxiliary acoustooptical deflector, focusing lens and photodetector placed in series in path of light. Output of photodetector is connected to second input of time interval meter. Measured radio signal is fed through divider to electric input of signal acoustooptical deflector and second output of divider is coupled to detector and former which output is linked through auxiliary generator to electric input of auxiliary acoustooptical deflector and simultaneously to first input of time interval meter. Meter is inserted with n delay lines, (n-1) auxiliary generators with different carrier frequencies, (n-1) photodetectors, (n-1) time interval meters and adder. N inputs of delay lines are connected in parallel with output of former which n outputs are connected to n analogous inputs of auxiliary generator and to n analogous first inputs of n timer interval meters and n outputs of auxiliary generators are coupled through adder to electric input of auxiliary acoustooptical deflector and n outputs of photodetectors are connected to n second inputs of time interval meters. EFFECT: decreased time of probable reception of radio signals by acoustooptical meter thanks to diminished time of reception of information on frequency of input radio signal. 5 dwg