Calibration of Inertial Measurement Units on a Low-Grade Turntable with Simultaneous Estimation of Temperature Coefficients

Авторы: Kozlov A., Tarygin I., Golovan A.
Сборник: 21st Saint Petersburg International Conference on Integrated Navigation Systems
Год издания: 2014
Место издания: Concern CSRI Elektropribor, JSC Saint-Petersburg
Первая страница: 376
Последняя страница: 379
Аннотация: The work concerns an improvement of the method for inertial measurement unit (IMU) calibration using a low-grade single-axis turntable with a horizontal axis of rotation. Conventional parameters of inertial sensors error model are estimated in this method. These parameters include null biases, errors of scaling factors, sensitive axis misalignments, dynamic drifts coefficients, and others, if necessary. At that, there is no need in any information provided by the turntable, either in angle or precise position measurements or rate measurements. This allows all desired parameters to be obtained in a simple procedure without precise equipment and without strict compliance with any predefined plan of operations. The aim of this particular work is to demonstrate that the method can be modified in order to incorporate the effect of temperature variations of sensor error model parameters. Temperature coefficients are estimated simultaneously with the rest of parameters in the same calibration procedure as before, but with non-constant temperature.
Добавил в систему: Козлов Александр Владимирович

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