| 二维超声波风速风向传感器风向信号修正方法 |
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| 引用本文： | 李静海,曾明,张小内.二维超声波风速风向传感器风向信号修正方法[J].传感器与微系统,2016(11). |
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| 作者姓名： | 李静海 曾明 张小内 |
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| 作者单位： | 天津大学 电气与自动化工程学院 机器人与自主系统研究所,天津,300072 |
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| 基金项目： | 国家自然科学基金资助项目(61271321，61573253，61401303) |
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| 摘 要： | 针对二维超声波风速风向传感器输出的风向信号普遍存在风向角瞬变的问题，研究了产生风向角瞬变现象的原因，并提出了一种基于幅值—符号分解的风向修正算法。理论分析和实验结果表明：风向信号中的风向角瞬变是由传感器的量程限制造成的；基于幅值—符号分解的风向修正算法能在不改变风向角所表征的方位特征的前提下消除风向角瞬变。
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| 关 键 词： | 风向信号 二维超声波风速风向传感器 幅值-符号分解 风向修正 |
Correction method for wind direction signal measured by 2D ultrasonic anemometer |
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| LI Jing-hai,ZENG Ming,ZHANG Xiao-nei.Correction method for wind direction signal measured by 2D ultrasonic anemometer[J].Transducer and Microsystem Technology,2016(11). |
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| Authors: | LI Jing-hai ZENG Ming ZHANG Xiao-nei |
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| Abstract: | Aiming at problem that wind angle transient is common in wind signal for 2D ultrasonic anemometer, causes of this problem is studied,and a correction algorithm based on magnitude/ sign decomposition is proposed. Theoretical analysis and experimental results show that the wind angle transient is arised by range limits of sensor, and the correction algorithm based on magnitude/ sign decomposition can eliminate this problem without changing orientative feature represented by wind angle. |
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| Keywords: | wind direction signal 2D ultrasonic anemometer magnitude-sign decomposition wind direction correction |
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