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An antenna angle measurement method and system

An antenna and angle measurement technology, applied in the field of antennas, can solve the problem of low measurement accuracy

Active Publication Date: 2020-12-18
CHENGDU UNIV OF INFORMATION TECH +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] However, the existing method based on digital beamforming and difference angle ratio method has low measurement accuracy when there are many targets

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  • An antenna angle measurement method and system
  • An antenna angle measurement method and system

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Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0058] see figure 1 , figure 1 It is a flow chart of an antenna angle measurement method provided by an embodiment of the present invention.

[0059] An antenna angle measurement method provided in an embodiment of the present invention may include the following steps:

[0060] Step S101: Receive the data information corresponding to each target collected by each antenna in the preset M antennas, and the total number of targets is N.

[0061] In practical a...

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Abstract

The invention discloses an antenna angle measurement method and system, wherein the method comprises: receiving data information corresponding to each target collected by the antenna and sent by each of the preset M antennas; Fourier transform is performed on the data information corresponding to the root antenna, and the complex index corresponding to each target and each antenna is obtained; the phase corresponding to each target and each antenna is calculated based on the relationship between the complex index and the phase; For the current target, calculate the phase difference between the phases corresponding to each adjacent two antennas and the current target according to the preset rules, and set the phase difference greater than 180 。 The value of is set to zero, the average value of the non-zero phase differences is calculated, and the incident angle corresponding to the average value is calculated based on the relationship between the phase and the incident angle. The incident angle is the incident angle corresponding to the current target. The antenna angle measurement method provided by the present invention solves the technical problem of how to improve the measurement accuracy of the antenna angle measurement method.

Description

technical field [0001] The present invention relates to the technical field of antennas, and more specifically, to an antenna angle measurement method and system. Background technique [0002] With the development of electromagnetic wave technology, the application of antenna is more and more extensive, such as the application in the forward radar of the car to measure the angle of the target in front of the car relative to the car, etc. The target here can be an obstacle. [0003] An existing antenna angle measurement method is based on digital beamforming and a ratio-amplitude method of difference angle measurement. [0004] However, the existing methods based on digital beamforming and angle difference measurement have low measurement accuracy when there are many targets. [0005] To sum up, how to improve the measurement accuracy of the antenna angle measurement method is an urgent problem to be solved by those skilled in the art. Contents of the invention [0006] T...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S3/48
CPCG01S3/48
Inventor 王海江孙敏何俊高梦青刘涛刘玟宏
Owner CHENGDU UNIV OF INFORMATION TECH
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