FIELD: physics.
SUBSTANCE: method of single-position determining angular coordinates consists in using as a photodetector device as a matrix photodetector, which receives the total radiation of the signal wave and the heterodyne wave. As a result of the superposition of the signal wave and the heterodyne wave, an image is formed on the MFD surface in the form of interference fringes. The angular coordinates of the laser radiation source are determined from the width of the interference fringes and the angle of their tilt.
EFFECT: increasing the accuracy of determining the direction of the laser radiation source.
2 dwg
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