Position control method based on fiber-optic gyroscope integral means

Abstract

The invention provides a position control method based on fiber-optic gyroscope integral means. Firstly, output data of M periods of a fiber-optic gyroscope are collected consecutively, outliers are removed from the output data, zero-bias stability Bs of the fiber-optic gyroscope is calculated according to n output data W1', W2'...Wn' with outliers removed. Secondly, smoothing filtering is carried out on the data of the fiber-optic gyroscope after outlier removal. At last, a transposition angle value of a servo-stabilization platform is obtained by integrating the angular rate wp of the fiber-optic gyroscope after smoothing filtering is carried out. The position control method based on the fiber-optic gyroscope integral means can be widely applied to a position twirl control system of a milliradian grade, for example a photoelectric instrument indicated by a helmet and a camera system indicated by a radar. Turning precision of 1 mrad can be qualified for introducing an objective to fields of view through position twirl. If no target indication high precision is required, optoelectronic equipment of this kind can entirely adopts the technology, and utilization of a light code disc or a resolver can be omitted; equipment cost can be saved.

Description

technical field [0001] The invention belongs to the technical field of optical aiming and position control, and in particular relates to a method for realizing position control by using an optical fiber gyroscope. Background technique [0002] Precision strike is one of the main characteristics of the evolution and development of modern weapons and equipment. Precision strike in motion is the basic requirement for tactical weapons. Stabilized aiming system is an important organizational part of precision strike tactical weapon system. In modern warfare, weapons equipped with optoelectronic devices such as advanced forward-looking infrared systems, infrared search and tracking systems, low-light television equipment, laser ranging / target indication systems, and laser automatic tracking systems are used in reconnaissance, night combat, air strikes, and air combat. played an important role in both. Steady aiming technology is an indispensable key technology for optoelectronic ...

AI Technical Summary

Problems solved by technology

However, for the output signal of the gyroscope, the principle of converting the speed signal into an angle signal is relatively simple, but in actual work, due to the existence of zero drift and zero bias in the gyroscope, the link of actually realizing the gyroscope angle integration is more detailed and complicated, and needs to be further studied Gyro signal for further processing

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