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Antenna angle measurement method and system

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

Active Publication Date: 2017-12-08
CHENGDU UNIV OF INFORMATION TECH +1
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  • Abstract
  • Description
  • Claims
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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

Method used

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  • 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. The method includes receiving data information corresponding to each target which is sent by each antenna among preset M antennas and collected by the antenna; performing Fourier transform on each target and the data information corresponding to each antenna, thereby obtaining a complex exponential of each target corresponding to each antenna; based on a relation between the complex exponential and phase, calculating the phase of each target corresponding to each antenna; and taking each target as a current target in sequence, according to preset rules, calculating a phase difference of phases of each two adjacent antennas corresponding to the current target, setting values that are larger than 180 degrees among the phase differences to be zero, calculating an average value of the nonzero phase differences, and based on a relation between phases and incident angles, calculating an incident angle corresponding to the average value, the incident angle being the incident angle corresponding to the current target. The antenna angle measurement method provided by the invention solves the technical problem of how to improve measurement accuracy of an 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...

Claims

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Application Information

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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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