Radio frequency/laser cooperative rapid capturing, tracking and aligning method

A laser tracking and radio frequency technology, used in electromagnetic wave transmission systems, electrical components, transmission systems, etc., can solve the problems of limited transmission distance of beams with large divergence angles, inability to achieve rapid beam capture, and difficulty in automatic adjustment of the field of view. Fast capture and precise tracking alignment, reduced capture alignment time, short scan time effect

Active Publication Date: 2019-09-13
10TH RES INST OF CETC
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Problems solved by technology

The main disadvantages of this method are: first, the transmission distance of the light beam with a large divergence angle is limited, and it can only be captured in a short distance, and cannot be used for a long-distance mobile platform; second, the optical detector with a large field of view needs to capture the light beam Using image tracking, in the case of complex background, it is difficult to extract the image target and automatically adjus

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  • Radio frequency/laser cooperative rapid capturing, tracking and aligning method
  • Radio frequency/laser cooperative rapid capturing, tracking and aligning method
  • Radio frequency/laser cooperative rapid capturing, tracking and aligning method

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[0017] Refer to figure 1 . According to the present invention, in the radio frequency / laser cooperative fast acquisition tracking alignment system, the acquisition tracking alignment is divided into radio frequency tracking and laser tracking; in the radio frequency tracking stage, the beam pointing controller detects the radio frequency omnidirectional beam and the radio frequency directional beam respectively. Information, extract the alignment error between the target pointing and the current actual pointing as the feedback amount, control the radio frequency directional beam and the laser beam pointing, and quickly find and capture the laser beam in the entire airspace with the aid of the radio frequency beam, and then switch to laser tracking; In the laser tracking stage, the beam pointing controller uses the beam information detected by the optical coarse field of view and the fine field of view respectively to extract the alignment error between the target pointing and th...

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Abstract

The invention discloses a radio frequency/laser cooperative rapid capturing, tracking and aligning method, and aims to provide a capturing, tracking and aligning method capable of rapidly capturing and aligning light beams in a high probability in a long-distance whole airspace. The invention is realized through the following technical method: in the radio frequency tracking stage, a beam pointingcontroller extracting an alignment error between a target pointing direction and a current actual pointing direction as a feedback quantity according to radio frequency omnidirectional beam and radiofrequency directional beam detection information, quickly searching for and capturing a laser beam through radio frequency beam assistance in a full airspace range, and switching to laser tracking; in a laser tracking phase, the beam pointing controller extracting an alignment error between a target pointing direction and a current actual pointing direction as a feedback quantity by respectivelyutilizing beam information detected by an optical coarse field of view and a fine field of view, controlling the laser beam pointing direction, further reducing the beam alignment error in a radio frequency tracking alignment error range, and guaranteeing continuous precise tracking alignment of a laser communication link.

Description

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Application Information

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Owner 10TH RES INST OF CETC
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