METHOD OF THREE-AXIS GYROSTABILIZER STABILIZED PLATFORM INDEPENDENT INITIAL ALIGNMENT IN HORIZONTAL PLANE AND AT SPECIFIED AZIMUTH Russian patent published in 2017 - IPC G01C21/18 

FIELD: instrument making.

SUBSTANCE: invention relates to gyroscopy and can be used for setting in horizon plane and at specified azimuth of carrier rockets and spacecraft boosters control system three-axis gyrostabilizer (TAG) stabilized platform (SP), launched from ground-based launch sites and sea platforms. In disclosed method after rough actuation of SP in horizon plane, stabilization system is turned on, in moments of sensors (MS) two-staged floated integrating gyroscopes (GB) of stabilization system SP, drift compensation currents are supplied SP, then SP deviation from horizon plane and uncompensated SP turn speeds relative to OX_u and ΟΖ_u axes are calculated, Earth's rotation velocity horizontal component projections are calculated on GB axis of sensitivity along yaw (P) and pitch (T) axes, TAG housing azimuth is coarsely determined, then accelerometers scaling coefficients are updated, GB Ρ and Τ drift components and their circuits calibration coefficients by setting of SP in four positions with azimuth of 0°, 90°, 180° and 270°, compensation of SP drift and performance of measurements in these positions, then SP by axis OX_u is coarsely set on starting azimuth, in DM GB own GB drifts and Earth's rotation vector components compensation currents are supplied, Earth's rotation velocity horizontal component projections are updated on GB Τ and Ρ axes of sensitivity and they are converted to North-South and West-East directions, OX_p axis mismatch with start azimuth is calculated, calculated mismatch is eliminated by turning about vertical axis on calculated angle, and SP is retained in start-up azimuth by compensation currents.

EFFECT: reduced three-axis gyrostabilizer stabilized platform in horizon plane and at specified azimuth setting error.

1 cl, 2 dwg