Arrayed ultrasonic wind speed and direction measurement based on the BNF-FLOC-MUSIC algorithm

IF 4.1 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical Pub Date : 2024-09-19 DOI:10.1016/j.sna.2024.115908

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Abstract

An arrayed ultrasonic wind measurement method based on the BNF-FLOC-MUSIC algorithm is proposed to address the issue of low measurement accuracy and poor noise suppression capabilities of current array wind measurement methods in impulse noise backgrounds. The proposed method utilizes an array structure consisting of one transmitting ultrasonic sensor and five receiving sensors. Continuous sampling is performed leveraging this structure, and the received array signals are processed using a bounded nonlinear function (BNF). Subsequently, the fractional lower-order covariance (FLOC) operations are applied to suppress impulse noise’s influence further. Finally, combining these steps with the Multiple Signal Classification (MUSIC) algorithm enables high-precision wind speed and direction measurement. The effectiveness and superiority of the method are examined through simulation experiments and actual measurement systems, and the errors of wind speed and wind direction angle in actual measurement are 1.2% and $2 °$ , respectively, which satisfy the design requirements of the ultrasonic anemometer.

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基于 BNF-FLOC-MUSIC 算法的阵列式超声波风速风向测量仪

针对目前阵列式风力测量方法在脉冲噪声背景下测量精度低、噪声抑制能力差的问题，提出了一种基于 BNF-FLOC-MUSIC 算法的阵列式超声波风力测量方法。所提出的方法采用阵列结构，由一个发射超声波传感器和五个接收传感器组成。利用这种结构进行连续采样，并使用有界非线性函数（BNF）处理接收到的阵列信号。随后，应用分数低阶协方差（FLOC）运算进一步抑制脉冲噪声的影响。最后，将这些步骤与多信号分类（MUSIC）算法相结合，就能实现高精度的风速和风向测量。通过模拟实验和实际测量系统检验了该方法的有效性和优越性，实际测量的风速和风向角误差分别为 1.2% 和 2°，满足超声风速计的设计要求。

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来源期刊

Sensors and Actuators A-physical 工程技术-工程：电子与电气

CiteScore

8.10

自引率

6.50%

发文量

630

审稿时长

49 days

期刊介绍： Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas: • Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results. • Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon. • Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays. • Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers. Etc...