METHOD FOR ACTIVE REACTION TO OPTOELECTRONIC TELEVISION OBSERVATION SYSTEM

摘要

FIELD: radio engineering; radio electronic means and observation systems for hidden active reaction to optoelectronic television observation systems. ^ SUBSTANCE: proposed method for active reaction to optoelectronic television observation systems is characterized in that noise signal is generated within radio-frequency band while shaping it in the form of pulse train at repetition frequency periodically varying in vicinity of repetition frequency of lines in frame or repetition frequency of frames or fields, for instance obeying sawtooth law, and this signal is investigated from region located beyond observation area of television observation system receiving component but within direct visibility zone of lens input aperture of this component. ^ EFFECT: provision for hidden active reaction to optoelectronic television observation system. ^ 1 cl, 3 dwg