Error Analysis and Rotation Scheme Research of Single-axis Rotary SINS

doi:10.3969/j.issn.1000-1093.2018.09.011

Abstract

Abstract: The error modulation principle and rotation scheme of single-axis rotary strapdown inertial navigation system (SINS) are studied, and the rotary modulation compensation of errors is analyzed. Single- axis unidirectional continuous rotation scheme, more than 360° two-position rotation-stop scheme, and less than 360° four-position rotation-stop scheme are designed. A long time navigation simulation of two- and four-position rotation-stop schemes is carried out under the swing state. The simulated results show that the positioning accuracies of the two- and four-position rotation-stop schemes are nearly the same. The four-position rotation-stop scheme is selected for engineering application. The rotary SINS using the four-position rotation-stop scheme is verified through the turntable and vehicle-mounted experiments, respectively. The results meet the initial design indexes of system and have reference value for engineering. Key

Key words: strapdowninertialnavigationsystem, fiber-opticgyro, inertialmeasurementunit, single-axisrotarymodulation, rotationscheme

CLC Number:

V249.32⁺2

LIU Sheng-pan， WANG Wen-ju， RAO Xing-qiao. Error Analysis and Rotation Scheme Research of Single-axis Rotary SINS[J]. Acta Armamentarii, 2018, 39(9): 1749-1755.

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第39卷
第9期2018 年9月兵工学报ACTA
ARMAMENTARIIVol.39No.9Sep.2018

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