Fiber-optic gyroscope temperature compensation method and device, electronic equipment and storage medium

Abstract

The invention discloses a fiber-optic gyroscope temperature compensation method and device, electronic equipment and a storage medium. The method comprises the following steps: reducing the fiber-optic gyroscope to a first preset temperature at a preset change rate at a preset conventional temperature, then raising the temperature to a second preset temperature at the preset change rate, and recording each temperature data of the fiber-optic gyroscope in a temperature change process and each gyroscope angular rate data corresponding to each temperature data; determining temperature transition time according to the gyro angular rate data; and constructing a gyro zero offset temperature compensation model based on the temperature lapse time, and performing temperature compensation on the fiber-optic gyro to be compensated through the gyro zero offset temperature compensation model. According to the invention, the influence of the previous temperature of the gyroscope is considered, and the temperature compensation model is constructed through the temperature interval difference values at intervals of a plurality of temperature lapse time on the time axis, so that the temperature drift of the gyroscope can be effectively compensated.

Description

Technical field[0001]The present application relates to the field of inertial positioning orientation, and in particular, there is a fiber optic gyro temperature compensation method, a device, an electronic device, and a storage medium.Background technique[0002]Optical fiber gyro is an angular rate sensor based on SAGNAC effect. Due to its low cost, simple process, high reliability, strong impact vibration capacity, its application prospects have attached importance, and has become one of the mainstream sensors. However, the main devices constituting the fiber optic gyro are more sensitive to the temperature of the optical fiber, the light source, etc., resulting in the temperature of the optical fiber gyro output, and the gyro output has a large drift with temperature change, and reduces the measurement accuracy of the fiber optic gyro. Therefore, temperature drift compensation for fiber optic gyro is an important means of improving its accuracy.[0003]Currently used fiber optic gyr...

AI Technical Summary

Problems solved by technology

The neural network model has great advantages in terms of accuracy, but its algorithm is complex, which is not conducive to engineering implementation

Most of the existing polynomial models only consider the influence of the current temperature of the gyroscope, but the temperature drift of the fiber optic gyroscope is not only related to the current temperature, but also has a greater relationship with the previous temperature of the gyroscope, and the closer the forward temperature is to the current temperature. The greater the influence of gyro temperature drift

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