An unmanned aerial vehicle relay laser communication system

A technology of laser communication and unmanned aerial vehicles, which is applied in the direction of radio transmission system, transmission system, electromagnetic wave transmission system, etc., to achieve the effect of improved information transmission distance, light weight and good effect

Active Publication Date: 2021-05-25
XIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a UAV relay laser communication system to solve the problem that the existing UAV communication system can only transmit laser signals in a short distance and in a small range in a straight line

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  • An unmanned aerial vehicle relay laser communication system
  • An unmanned aerial vehicle relay laser communication system
  • An unmanned aerial vehicle relay laser communication system

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Embodiment Construction

[0047] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited to the specific embodiments.

[0048] refer to figure 1 and figure 2 , an unmanned aerial vehicle relay laser communication system of the present invention mainly includes a double-input and double-output optical fiber amplifier, and the two ends of the optical fiber amplifier are respectively connected in turn with a three-port CWDM wavelength division multiplexer and four CCD image sensors. The four CCD image sensors are respectively located on the four quadrants of the coordinate system with the fiber coupling end face as the center of the circle, and the center of the light spot detection surface composed of the CCD image sensors is the coupling point. The light spot, that is, when the specific centroid of the light spot can be detected on the four CCDs, the coupling is considered to be com...

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Abstract

The invention discloses an unmanned aerial vehicle relay laser communication system, which comprises an optical fiber amplifier. The two ends of the optical fiber amplifier are respectively connected with a wavelength division multiplexer, a spot detector and a coupling lens group in sequence, and a scanning pendulum mirror is arranged on the front of the coupling lens group. , the scanning oscillating mirror is connected with a servo turntable that controls the movement of the scanning oscillating mirror to receive and transmit signals. The UAV relay laser communication system of the present invention can greatly increase the information transmission distance of point-to-point laser communication on the ground, and make the broken line transmission link of the laser signal possible; the UAV reduces the impact of laser communication on the terrain environment. Requirements, and the UAV stays in the air for a long time, and is easy to operate flexibly, which makes the application range of the UAV relay laser communication system of the present invention wider.

Description

technical field [0001] The invention belongs to the technical field of wireless laser communication, and in particular relates to an unmanned aerial vehicle relay laser communication system. Background technique [0002] With the development of science and technology, the production cost of UAVs is getting lower and lower. Therefore, UAVs are characterized by no risk of casualties, strong survivability, flexible movement, not restricted by terrain factors, strong anti-interference ability and long-lasting time in the air. Long and other advantages, can be combined with professional technologies in various fields, and used in more and more fields. UAV laser communication is a kind of application of UAV in the field of communication. [0003] UAV laser communication system plays an important role in command communication in modern warfare. The laser communication link has the advantages of large communication capacity, high transmission rate, good concealment, strong anti-int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185H04B10/294
CPCH04B7/18504H04B10/294
Inventor 柯熙政陈晓展吴加丽
Owner XIAN UNIV OF TECH
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