CELESTIAL GUIDANCE SYSTEM Russian patent published in 2010 - IPC G01C21/10 

FIELD: physics, navigation.

SUBSTANCE: invention relates to celestial guidance systems designed to determine stabilised elevation angle and relative bearing to celestial reference point that allow define heading indication and position. Proposed system comprises triads of accelerometers, sighting device with non-stabilised elevation angle and relative bearing transducers, swinging angle primary definition unit, direct conversion unit with three inputs and two outputs and inversion unit with two inputs, as well as Fourier analyser with two inputs and adder. Aforesaid accelerometers are connected to the 1^st input of Fourier analyser and swinging angle primary definition unit with its output connected with direct conversion unit. Angle transducers are connected to second inputs of 2^nd inputs of conversion and inversion units. Appropriate inputs and outputs of conversion and inversion units are connected so that swinging angle refinement closed loop is formed. Inversion unit output is connected to the 2^nd input of Fourier analyser and, via adder, with Fourier analyser output to make a correction generation loop. The 1^st output of direct conversion unit makes the output of the entire system.

EFFECT: reduced amount of sensitive components maintaining preset error in defining heading indication and position correction.

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