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Image and communication composite high-precision tracking control method in airborne laser communication system

A communication system and airborne laser technology, applied in vehicle position/route/height control, attitude control, non-electric variable control, etc., can solve the problems of poor robustness, susceptibility to external interference, and insufficient tracking accuracy, and achieve improved Response time, effect of improving tracking accuracy

Active Publication Date: 2022-03-04
CHANGCHUN UNIV OF SCI & TECH
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Problems solved by technology

[0010] The purpose of the present invention is to provide a high-precision tracking control method for image and communication in an airborne laser communication system, which is used to solve the technical problems in the above-mentioned prior art, such as: easy to be affected by external interference, poor robustness, and insufficient tracking accuracy high

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  • Image and communication composite high-precision tracking control method in airborne laser communication system
  • Image and communication composite high-precision tracking control method in airborne laser communication system

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Embodiment

[0051] Such as figure 1 As shown, a high-precision tracking control method for image and communication in the airborne laser communication system is proposed.

Embodiment example

[0052] Implementation case: The two parties conduct initial alignment of the target under the guidance of radar or GPS (pointing error ≤ 1°); after the ground target enters the field of view of the mid-wave infrared detection and tracking of the airborne photoelectric pod, the main control board on the aircraft communicates through RS422 Control the state of the image processing board to switch to the image target tracking and mid-wave infrared detection mode. The mid-wave infrared photoelectric switch transmits the zero position of the stepping motor to the main control board on the machine through the IO port, and the main control board on the machine controls the mid-wave infrared stepping Motor execution, adjust the focal length of the medium-wave infrared detector, image extraction and recognition of the image of the ground target object, and then through the image processing board, the calculated miss-target amount is directly transmitted to the coarse servo control board ...

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Abstract

The invention relates to an image and communication composite high-precision tracking control method in an airborne laser communication system. The two parties carry out initial alignment on a target under the guidance of a radar or a GPS (Global Positioning System); after a ground target enters a medium-wave infrared detection tracking view field of the airborne photoelectric pod, the airborne photoelectric pod performs target image extraction and recognition on a ground target image; the airborne photoelectric pod carries out image tracking on the recognized ground target image; after tracking is completed, communication emission light and 1064nm indication laser are started; the ground near-infrared / laser detection unit receives the light and performs target image / light spot tracking; after tracking is completed, the ground servo turntable starts communication emission light and indication laser; a near-infrared / laser detection unit of the airborne photoelectric pod performs image / light spot tracking on a ground target; and the four-image-limit detectors of the platforms of the two parties perform tracking and communication. The tracking precision of the system is improved; meanwhile, the response time is shortened; a four-image-limit detector is adopted for tracking and communication, and combination of tracking and communication is achieved.

Description

technical field [0001] The invention belongs to the technical field of space laser communication APT, and in particular relates to an image and communication compound high-precision tracking control method in an airborne laser communication system. Background technique [0002] The development level of aviation and aerospace industry is an important symbol of a country's scientific and technological capabilities, economic strength and national defense strength. Aeronautics and aerospace technology not only play a pivotal role in the field of national defense, but also have considerable significance in civilian applications. Airborne laser communication servo control technology is a core technology in the field of aerospace and navigation. As the hardware equipment of airborne laser communication servo control technology, the turntable servo system plays an extremely important role in its development. The servo control system is an automatic control system that enables the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/08
CPCG05D1/0833Y02P90/02
Inventor 李燕军刘洋宋延嵩董岩张敏
Owner CHANGCHUN UNIV OF SCI & TECH
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