Optical axis monitoring method and device for high-precision active/ passive detection system

Abstract

The invention discloses an optical axis monitoring method and device for a high-precision active / passive detection system. The device comprises a laser emission system, an optical axis separation assembly, a common telescope, an optical axis monitoring camera, a passive imaging system and a laser reception system. By utilizing a characteristic that an included angle between prism incident light and prism emergent light in an incident plane is only related to the an included angle of a prism reflecting surface, and by means of introducing an optical axis separation component and the optical axis monitoring camera and the like to the high-precision multi-optical axis active / passive composite detection system, a relative relation between a laser emission optical axis and a passive imaging system optical axis is established, so that variation conditions of each optical axis can be monitored in real time in the working process of the high-precision active / passive detection system, and on the basis of the obtained optical axis variation data, detection data can be corrected in the following data processing. The method and the device have the advantages of high optical axis monitoring sensitivity, good self optical axis stability and mature processing and adjusting technology and the like, and can be widely applied to an airborne and satellite-borne high-precision active / passive compound detection optoelectronic system.

Description

Technical field: [0001] The invention belongs to the technical field of active-passive composite photoelectric detection, and relates to a composite detection system that combines high-precision laser active detection / passive photoelectric imaging applied to airborne and space-borne platforms, in particular to a high-precision active-passive detection system that can be used Optical axis monitoring method and device. Background technique: [0002] As users have higher and higher requirements for the accuracy of laser surveying and mapping data, it is difficult to meet the requirements of high-precision surveying and mapping because the data obtained by relying on a single laser radar surveying and mapping system cannot be accurately matched with ground targets. In order to solve the problem of positioning the laser beam emitted by the laser radar surveying and mapping system to achieve high-precision matching between the laser beam and the ground target, the United States ha...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of real-time monitoring of the relative relationship between the laser emission optical axis and the optical axis of the passive imaging system in the high-precision multi-optical axis active-passive composite detection system, the present invention proposes a high-precision active-passive detection system for optical axis monitoring The method and device establish the relative relationship between the laser emitting optical axis and the optical axis of the passive imaging system by introducing optical axis separation components and optical axis monitoring cameras into the system, so as to facilitate real-time detection of Monitor the changes of each optical axis

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