Doppler wind lidar data acquisition system and data analysis by empirical mode decomposition method

Doppler wind lidar data acquisition system and data analysis by empirical mode decomposition method
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多普勒测风激光雷达数据采集系统及经验模态分解法数据分析

DOI:
10.1117/1.2432109
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发表时间:
2007-02
影响因子:
1.3
通讯作者:
--
中科院分区:
工程技术4区
文献类型:
--
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介绍了测风激光雷达数据采集系统的实现,以及基于经验模态分解(EMD)的信号去噪方法。本文提出了一种解决EMD边缘问题的方法。实践证明,该方法能较好地解决激光雷达数据分析中的边缘问题。采用EMD方法可以使信号的信噪比提高3倍以上。在资料处理中,它比相邻平均法有更好的效果。
This paper describes the realization of the wind lidar data acquisition system, and a method of denoising signal based on empirical mode decomposition (EMD). The paper proposes a method for raveling out the edge problem that comes with EMD. It has been proved to be a good method for solving the edge problem in analyzing lidar data. We can improve the ratio of signal to noise by using the EMD method three times more than the original's. It has been proved to be better than adjacent averaging in data processing.
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