METHOD OF DETERMINING ANGULAR COORDINATES TO DIRECTED OPTICAL RADIATION SOURCE Russian patent published in 2018 - IPC G01S3/782 G01S17/06 

FIELD: physics.

SUBSTANCE: method includes linking the position of the photosensitive elements of the matrix photodetector of the opto-electronic coordinator to the Cartesian coordinate system, receiving the radiation, separating, at least, six photocells of the matrix photodetector, the signals at the output of which are equal to each other, determining their coordinates and calculating their elevation angle and the azimuth of the radiation source. In addition, during measurement, the total signal S1 of the selected six photocells is determined, the plane of the matrix photodetector is tilted along the elevation angle, the total signal S2 of the selected six photocells is repeatedly determined, and the obtained values of the signals S1 and S2 are compared. If S1>S2, then it is determined, whether the source of optical radiation belongs to the upper half-space of the angle range from 0° up to 90°. If S1<S2, then it is determined that the source of optical radiation belongs to the upper half-space of the angle range from 90° up to 180°.

EFFECT: removing restrictions on the ambiguity of determining the elevation angle.

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