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Spiral scanning method for terahertz wave beam alignment

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

Active Publication Date: 2021-09-10
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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  • Spiral scanning method for terahertz wave beam alignment
  • Spiral scanning method for terahertz wave beam alignment

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Embodiment Construction

[0034] The present invention will be further described in 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 spiral scanning method for terahertz wave beam alignment, and the method comprises the steps: firstly estimating an area where the terahertz signal intensity distribution is relatively large; setting a starting point in the area; enabling a receiver to carry out coarse scanning at the starting point spirally outwards until the power of a received terahertz signal is greater than a certain threshold value; and continuously increasing the spiral scanning precision to obtain a considerable power value after the coarse scanning is finished; and searching for the maximum power point meeting the precision by using an optimized hill climbing method in a fine scanning stage. According to the method, the spiral scanning algorithm with low time cost is used, the maximum power point of the terahertz signal is determined through the optimization algorithm, unnecessary scanning paths are reduced, the implementation method is simple and convenient and low in cost, and natural light irradiation experiments prove 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 Applications(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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