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Axis alignment adjustment method and system for orbital angular momentum wireless communication system

A technology of wireless communication system and orbital angular momentum, applied in the direction of transmission system, transmission monitoring, electrical components, etc., can solve problems such as measurement error, error, and affecting the performance of orbital angular momentum wireless communication system, and achieve the effect of ensuring reliability

Active Publication Date: 2014-08-13
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

However, unlike traditional mobile communication, the detection of orbital angular momentum mode requires precise alignment of the detection device with the axis of the launcher, otherwise, a small deviation will bring errors or even errors to the measurement, which will seriously affect the orbital angular momentum wireless communication system performance

Method used

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  • Axis alignment adjustment method and system for orbital angular momentum wireless communication system
  • Axis alignment adjustment method and system for orbital angular momentum wireless communication system
  • Axis alignment adjustment method and system for orbital angular momentum wireless communication system

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Embodiment Construction

[0020] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] figure 1 A flow chart of an axis alignment adjustment method for an orbital angular momentum wireless communication system according to the present invention is shown.

[0022] refer to figure 1 , an axis alignment adjustment method of an orbital angular momentum wireless communication system according to an embodiment of the present invention, comprising the steps of:

[0023] S1. After receiving the training signal sent by the sending end, the receiving end identifies the pattern of the training signal;

[0024] S2. If it is consistent with the set mode, send an alignment confirmation signal to the sending end;

[0025] S3. If it is inconsistent with the set mode, perform axis alignment adjustment on the receiving end, and send an alignment confirmation signal to the sending end after the adjustment is completed.

[0026] Adjusting the axis ...

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Abstract

The invention relates to an axis alignment adjustment method and system for an orbital angular momentum wireless communication system. The axis alignment adjustment method for the orbital angular momentum wireless communication system comprises the steps that S1, a receiving end recognizes the mode of a training signal after receiving the training signal sent by the sending end; S2, if the mode of the training signal is consistent with a set mode, an alignment confirmation signal is sent to the sending end; S3, if the mode of the training signal is not consistent with the set mode, axis alignment adjustment is conducted on the receiving end, and an alignment confirmation signal is sent to the sending end after adjustment is completed. According to the axis alignment adjustment method and system for the orbital angular momentum wireless communication system, due to the fact that the process of retransmission confirmation achieved through the training signal and the automatic axis alignment adjustment method are adopted, the influence of axis misalignment on detection is avoided during orbital angular momentum wireless communication, and the reliability of end-to-end communication is guaranteed.

Description

technical field [0001] The present invention relates to a wireless communication system, in particular to an axis alignment adjustment method and system for orbital angular momentum wireless communication. Background technique [0002] At present, with the popularization of mobile terminals, the existing dense coding and channel sharing technologies can no longer effectively avoid the congestion of available radio frequency bands, which causes great inconvenience to users. Therefore, it is very important to develop new technologies to effectively use the spectrum and increase the information transmission rate. [0003] One approach is to exploit the orbital angular momentum of electromagnetic fields -- an essential physical property that has hitherto not been used in wireless communications. The electromagnetic field has not only energy but also angular momentum. According to quantum mechanics, angular momentum can be decomposed into two parts: spin angular momentum (SAM) a...

Claims

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Application Information

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IPC IPC(8): H04B17/00
Inventor 田辉张平周叶青刘自强
Owner BEIJING UNIV OF POSTS & TELECOMM
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