DEVICE FOR DETERMINING ASTRONOMICAL COORDINATES OF AN OBJECT Russian patent published in 2018 - IPC G01C21/24 

FIELD: information technology.

SUBSTANCE: invention can be used to test and configure mobile devices used in self-contained navigation systems. Device includes an optical unit with three rigidly bounded reflective faces, two are inclined, one is vertical, an autocollimation block containing a lens, a test object and a reference node, reflective horizon optically connected to a first reflective inclined face and to the lens to which a second reflective inclined face is connected, a third face is perpendicular to an optical axis of the lens. Optical block is made up of two rigidly bonded base prism faces. One of the prisms, AP-90°, has a support face facing the reflective horizon, and a base face facing the lens. Second prism is made with an angle α between the reflective and base faces. Ratio of dimensions of the reflecting faces of the prisms is chosen from the condition of equal echo intensity. Main sections of the prisms lie in one plane perpendicular to a plane of the reflective horizon and passing through an optical axis of the lens.

EFFECT: determination with high accuracy in real time of the angular coordinates of objects and astronomical coordinates at an observation point in conditions of limited access to a stationary geodetic network and unstable observation conditions.

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