METHOD FOR DETECTING OPTICAL AND OPTICAL-ELECTRONIC SURVEILLANCE MEANS AND DEVICE FOR REALIZATION OF SAID METHOD Russian patent published in 2006 - IPC G01S17/06 

FIELD: optical location technologies.

SUBSTANCE: method includes simultaneously receiving signals of natural background radiation in spectral range of reflected laser radiation, and receiving continuous optical signals in spectral range of natural background radiation from observed volume of space, after transformation of received optical signals to video signal from first video signal, appropriate for reflected laser radiation, video signal is subtracted element-wise, appropriate for optical signal of natural background radiation in spectral range of reflected laser radiation, threshold selection of difference video signal is performed, and from the number of video signals, exceeding the threshold, video signals are selected, appropriate for code-pulse modulation of laser radiation and if such signals are present, alarm signal is generated, simultaneously from difference video signal, exceeding the threshold, and video signal, appropriate for continuous optical signal in spectral range of natural background radiation with consideration of parallax, and after transformation of composite video signal to optical image, position of detected optical means is fixed relatively to characteristic objects on the map of local area.

EFFECT: increased efficiency of detection of optical surveillance means on under-spreading surface, increased precision of alignment of detected means in the local area relatively to certain objects.

2 cl, 1 dwg