ULTRASONIC WIND SPEED AND DIRECTION MEASUREMENT BASED ON QUADRATIC FRACTIONAL LOW ORDER COVARIANCE

Liu Xiaosong; Ren Wei; Shan Zebiao; Liu Yunqing

doi:10.19912/j.0254-0096.tynxb.2024-0736

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (9) : 34-41. DOI: 10.19912/j.0254-0096.tynxb.2024-0736

ULTRASONIC WIND SPEED AND DIRECTION MEASUREMENT BASED ON QUADRATIC FRACTIONAL LOW ORDER COVARIANCE

Liu Xiaosong¹, Ren Wei¹, Shan Zebiao^1,2, Liu Yunqing¹

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Abstract

In order to solve the problems of performance degradation and poor stability of the ultrasonic wind measurement system in the presence of strong impulse noise, a three-element ultrasonic wind vector measurement method using the quadratic fractional low-order covariance algorithm is proposed. The three-element ultrasonic array structure consists of three transceiver-integrated ultrasonic transducers. Based on the system structure and combined with the quadratic fractional low-order covariance algorithm, the propagation time of the ultrasonic wave is obtained, then the wind vector estimation value is obtained. The practicability of the proposed method is verified by the actual wind measurement system and comparative simulation. In the actual measurement, the maximum error of wind speed and wind direction angle is 2.2% and 2.4° respectively, and the measurement accuracy basically meets the requirements of ultrasonic wind direction measurement.

Key words

wind speed and direction measurement / ultrasonic measurement / time delay measurement / quadratic fractional low-order covariance / impulse noise

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Liu Xiaosong, Ren Wei, Shan Zebiao, Liu Yunqing. ULTRASONIC WIND SPEED AND DIRECTION MEASUREMENT BASED ON QUADRATIC FRACTIONAL LOW ORDER COVARIANCE[J]. Acta Energiae Solaris Sinica. 2025, 46(9): 34-41 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0736

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