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High-energy pulse laser range finder optical axis detection system and detection method

A technology of laser ranging and high-energy pulse, which is applied in the field of optical axis detection system of high-energy pulse laser rangefinder, can solve the problem of low intelligence of the optical axis of laser rangefinder, achieve high anti-laser damage threshold, low cost, The effect of simple overall structure

Pending Publication Date: 2019-03-01
XIAN TECH UNIV
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Problems solved by technology

However, the correction of the optical axis of the laser rangefinder still has problems such as a low degree of intelligence

Method used

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  • High-energy pulse laser range finder optical axis detection system and detection method
  • High-energy pulse laser range finder optical axis detection system and detection method

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] The basic design principle of the present invention: first, the high-energy pulsed laser is effectively attenuated and back-reflected, and then the laser spot is collected by the CCD somewhere in front of the laser emission window, and then the data processing of the collected laser spot is performed in real time on the host computer , using an algorithm to determine the precise pointing of the laser optical axis.

[0021] The detection principle of the pres...

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Abstract

The invention provides a high-energy pulse laser range finder optical axis detection system and a detection method. The system is formed by a beam expanding system, a light attenuation system, a lightabsorption system, a CCD, a post-processing system and the like. Reflective attenuation with a higher anti-damage threshold is adopted. Most of a retroreflectance laser is processed by the light absorption system. The laser passes through a reflective optical attenuator and then is emitted to a variable optical attenuator so that different degrees of attenuation are performed on light. The laserpenetrating the variable optical attenuator is received by the CCD. A back-end processor carries out data processing on a light spot received by the CCD, and then uses an algorithm to accurately position the location of the center of mass so as to determine the position of a laser beam axis. In the invention, a novel grating-type light absorbing system is adopted to process a high-energy laser sothat the size of the system is greatly reduced and an entire measurement system is compact. The system and the method are suitable for more application scenes.

Description

technical field [0001] The invention relates to the technical field of laser ranging applications, in particular to an optical axis detection system and a detection method of a high-energy pulse laser ranging machine. Background technique [0002] The laser ranging system is an important part of the current military optoelectronic equipment. The ranging accuracy of the laser rangefinder is closely related to the parallelism of the laser emission axis, laser receiving axis and observation and aiming axis of the laser rangefinder. Only by ensuring the parallelism of the three optical axes can the ranging accuracy of the laser rangefinder be guaranteed and the target distance can be measured quickly and accurately. [0003] At present, the detection of the optical axis of the high-energy pulse laser rangefinder generally adopts the "laser dot method", that is, according to the correction and adjustment method adopted by the laser rangefinder, the adjustment mirror will observe ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/497
CPCG01S7/497
Inventor 张祥伟时凯陶禹马群陈玉娇龚昌妹
Owner XIAN TECH UNIV
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