Engineering Journal: Science and InnovationELECTRONIC SCIENCE AND ENGINEERING PUBLICATION
Certificate of Registration Media number Эл #ФС77-53688 of 17 April 2013. ISSN 2308-6033. DOI 10.18698/2308-6033
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Article

Computational experimental assessment of the optimization algorithm for the inertial platform initial alignment

Published: 14.05.2025

Authors: Naumchenko V.P.

Published in issue: #5(161)/2025

DOI:

Category: Aviation and Rocket-Space Engineering | Chapter: Aircraft Dynamics, Ballistics, Motion Control

The paper presents results of the experimental development of a new optimization algorithm for the initial alignment suitable for the platform-class inertial navigation systems (INS) or strap-down inertial navigation systems (SINS) on the rotating base. The previous works by the author applied the steepest descent method as a basis in theoretical studies of the concept of constructing an optimization algorithm for the INS initial alignment for space rockets, measurement noise effect on the alignment accuracy and speed, and simulation of the algorithm operation. As part of the final stage of the study, the paper provides results of the algorithm semi-naturalistic simulation for solving the problem of the platform initial alignment. Moreover, separate problems, but no less important from the point of view of their application, are solved. They include leveling a single-axis platform, azimuthal gyrocompassing and alignment of a SINS with the rotating block of sensitive elements around the rotation axis equally deviated from the measurement channels sensitivity axes. A strap-down measurement unit based on the vibration-string accelerometers and fiber-optic gyroscopes is used as the primary measurement device. A three-axis motion simulator is applied to simulate the platform. The obtained results scatter is assessed and compared with the simulation modeling results to confirm the compiled models correctness.

 EDN  JDMYRY


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