A helical scanning method for terahertz beam alignment

A terahertz beam and helical scanning technology, which is applied in the fields of electronics and information, can solve problems such as lack of scanning solutions, and achieve the effects of reducing scanning paths, ensuring scanning quality, and low cost

Active Publication Date: 2022-03-29
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, there is still a lack of a relatively complete scanning scheme for the maximum power reception of terahertz signals.

Method used

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  • A helical scanning method for terahertz beam alignment
  • A helical scanning method for terahertz beam alignment

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the purpose and effects of the present invention will become more apparent.

[0035] The flow chart of a helical scanning method for terahertz beam alignment in the present invention is as follows figure 1 shown, including the following steps:

[0036] (1) Select a point in the scanning area as the starting point of the first helical rough scan;

[0037] Determine the range where the maximum point of terahertz beam power may appear at the receiving end of the terahertz beam, and use this range as the scanning area of ​​the receiving end of the terahertz beam, and uniformly and randomly select points in the scanning area to measure the received terahertz power, and compare to obtain the maximum received terahertz power. The power point, tentatively set the maximum received power point as the maximum received power point of the terah...

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Abstract

The invention discloses a helical scanning method for terahertz beam alignment. The method first estimates the area where the terahertz signal intensity distribution is relatively large, and sets a starting point in the area, so that the receiver can scan at the starting point at this starting point. Coarse scanning is carried out in a spiral outward manner until the received terahertz signal power is greater than a certain threshold, and then the precision of the spiral scanning is continuously increased, so that a considerable power value can be obtained after the rough scanning, while in the fine scanning stage, the optimized hill climbing method is used to find The maximum power point that satisfies the accuracy. The present invention uses a low-time-cost helical scanning algorithm to determine the maximum power point of a terahertz signal through an optimized algorithm, reduces unnecessary scanning paths, has a simple implementation method and low cost, and the natural light irradiation experiment proves that the scanning quality can be guaranteed.

Description

technical field [0001] The invention relates to the fields of electronics and information, in particular to a helical scanning method for terahertz beam alignment. Background technique [0002] Terahertz technology is a key breakthrough in ultra-high-speed wireless communication. Its signal has natural advantages such as high frequency, short pulse, strong penetrability, and little damage to materials and human bodies. It can well adapt to the needs of 6G communication. It provides a very attractive opportunity for technological innovation, national economic development and national security, which may lead to the revolutionary development of science and technology. [0003] At present, research on terahertz technology has been highly valued. People hope to use terahertz as a carrier signal for high-speed wireless communication transmission, so as to achieve a standard long-distance communication rate of 10Gb per second. However, in the current research, this goal has not ye...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/90H04B10/079G06F17/10
CPCH04B10/90H04B10/07955G06F17/10
Inventor 张大丁向平宇贾晨张鹿
Owner ZHEJIANG UNIV
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