基于二次分数低阶协方差的超声波风速风量方法

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

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基于二次分数低阶协方差的超声波风速风量方法

更新时间：2025-10-22

- 基于二次分数低阶协方差的超声波风速风量方法
- Vol. 46, Issue 9, Pages: 34-41(2025)
- 作者机构：
- 作者简介：
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- DOI：doi:10.19912/j.0254-0096.tynxb.2024-0736
  CLC： TH765
- Published Online：14 October 2025，
  
  Published：2025
- 稿件说明：
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[J]. 2025, 46(9): 34-41.
DOI：

[J]. 2025, 46(9): 34-41. DOI： doi:10.19912/j.0254-0096.tynxb.2024-0736.

摘要

为解决强脉冲噪声背景下超声波测风系统性能衰退、受环境噪声影响稳定性较差等问题

提出一种基于二次分数低阶协方差的三阵元超声波风矢量测量方法。三阵元超声波阵列结构由3个收发一体式的超声波换能器构成

依托该系统结构并结合二次分数低阶协方差算法求得超声波传播时间

进而得到风矢量估测值。通过搭建的实际测风系统以及对比仿真实验证实了该文方法的有效性。在实际测量中风速风向角的最大测量误差分别为2.2%和2.4°

测量精度满足超声波风速风向测量的基本要求。

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.

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references

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