Method for measuring sight line stabilizing accuracy of photoelectric sight-stabilizing system

Abstract

The invention discloses a method for measuring the sight line stabilizing accuracy of a photoelectric sight-stabilizing system, and belongs to the technical field of optical measurement. The method is characterized by comprising the following steps that: a plane reflector is fixed on an inner ring frame of the photoelectric sight-stabilizing system to be measured, the photoelectric sight-stabilizing system to be measured is in a vibration state, a measuring laser beam is subjected to strength stabilization, spatial filtering and collimation and then irradiates the plane reflector, a complementary metal oxide semiconductor (CMOS) camera transmits a light spot image sequence of a reflected light beam imaged on a target surface to an image recording and processing system, and the image recording and processing system performs a series of processing on the light spot image sequence to obtain a light spot center-of-mass coordinate sequence, a stabilizing accuracy value sequence and stabilizing accuracy value sequence standard deviation, so that the stabilizing accuracy is measured. By the method, the high-accuracy measurement of the sight line stabilizing accuracy of the photoelectric sight-stabilizing system is realized; and the method can be popularized to the fields of measurement of the stabilizing accuracy of a gun control system and the like, and is wide in application prospect.

Description

technical field [0001] The invention belongs to the technical field of optical measurement, and mainly relates to a method for measuring the stable precision of a line of sight, in particular to a method for measuring the stable precision of a line of sight for a photoelectric system of a moving carrier. Background technique [0002] The photoelectric stabilized aiming system is widely used in high-tech weaponry and equipment systems, and is a key technology to realize the precise strike of high-tech weaponry and equipment. Modern airborne, vehicle-mounted, and ship-borne optoelectronic weapons and equipment all put forward high requirements for the stable accuracy of the line of sight in the optoelectronic stabilized sight system. In the actual combat environment, the electro-optical stabilization system will inevitably be disturbed by various frequency vibrations in the external environment. At this time, the stability of the line of sight is an important evaluation index ...

AI Technical Summary

Problems solved by technology

In this method, the acquisition object of the digital camera sensor is a star-point hole image with a certain spectral distribution (non-monochromatic), so in order to obtain a higher image quality, the positive group lens and the negative group lens are separated, and a special lens is selected. Dispersive positive group lens material corrects the secondary spectrum, so this method is more expensive

In addition, the phase correlation registration method used in this method has high computational complexity and requires better workstation performance. At the same time, the registration method requires that the difference between the star point hole images in the multiple images involved in the correlation operation should not be too large. Otherwise, it will cause errors, but the non-uniformity of the light source, measurement beam power fluctuations, detector noise, environmental changes and other issues will make it difficult to guarantee this condition in actual measurement, affecting the accuracy and reliability of measurement results

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