RECOGNITION METHOD OF EXTENDED TARGET AS TO VELOCITY AND DEVICE FOR REALISATION THEREOF Russian patent published in 2009 - IPC G01S13/53 

FIELD: instrument engineering.

SUBSTANCE: invention refers to systems meant for object detection and can be used in radio-location for recognising extended target as to velocity. Essence of invention consists in providing the possibility of recognising extended target as to velocity by means of narrow-band filtering of Doppler component frequency of reflected signal spectrum, in determining the band of ΔV target approach velocities, which is included in filter pass band of Doppler frequency ΔF_d, by the formula ΔV=ΔF_d·λ/2, where λ - radiation wave length, in determining Doppler frequency band occupied with signal reflected from ΔF_d target, in determining the band of ΔF_dt target approach velocities, which is occupied with signal reflected from the target by the formula ΔV_t=ΔF_dt·λ/2, where λ - radiation wave length, in determining the ratio β=ΔV_t/ΔV, at β≥0.01, in taking a decision on extended target as to velocity, at β≤0.01, and in taking a decision on point target as to velocity. Device used for method realisation consists of recognition channel including in-series connected doppler filter, signal duration measuring instrument, computer and threshold device, which are connected in a certain way to the appropriate means of the above device.

EFFECT: enlarging informativity.

2 cl, 1 dwg