A Method for Measuring Wind Velocity and Direction with Three-Dimensional Ultrasound Array

被引：1
|
作者：
Li X. [1 ]
Zhu G. [1 ]
Li H. [1 ]
Jia Y. [1 ]
机构：
[1] College of Communication Engineering, Jilin University, Changchun
来源：
Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2019年 / 53卷 / 09期
关键词：
Beamforming algorithm; Measurement accuracy; Three-dimensional wind parameter measurement; Ultrasonic sensor array;
D O I：
10.7652/xjtuxb201909010
中图分类号：
学科分类号：
摘要：
The accuracy of wind measurement by the traditional time difference method is directly affected by the measurement accuracy of the ultrasonic propagation time. A three-dimensional wind parameter measurement method based on spatial ultrasonic sensor array and beamforming algorithm is proposed, in which a new structure of spatial ultrasonic sensor array with one transmitter and multiple receivers is adopted and the beamforming algorithm is used for spatial filtering to enhance the desired signal, suppress interference and improve the accuracy of wind measurement. Simulation shows that the success rate of wind measurement can reach almost 100% when the signal-to-noise ratio is 5 dB, and the higher the signal-to-noise ratio, the higher the success rate of wind measurement and the smaller the root mean square error. A hardware experimental platform is constructed to verify the proposed wind measurement method. It is shown that in wind tunnel the wind speed measured is 6.363 7 m/s, which is only 0.079 3 m/s different from the result of 6.443 m/s measured by mechanical anemometer under the premise of allowable structural error and equipment error, so the feasibility of the method is preliminarily verified. This method provides a new idea for the following-up exploration of wind measurement methods. © 2019, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.
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页码：70 / 78
页数：8
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