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Wu Qinqin

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Articles by Wu Qinqin

Continuous wavelet transform and iterative decrement algorithm for the Lidar full-waveform echo decomposition

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By Qiang Shengzhi, Wang Yuanqing, Wu Qinqin
| osapublishing.org
Abstract In this paper, we propose a continuous wavelet transform and iterative decrement algorithm to decompose the light detection and ranging (LiDAR) full-waveform echoes into a series of components, each of which can be assumed as Gaussian essentially. We calculate the scale of continuous wavelet transform in real time according to the relationship between the center frequency of the mother wavelet and the approximate frequency of the transmitted laser pulse.
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Lidar full-waveform decomposition based on empirical mode decomposition and local-Levenberg–Marquard fitting

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By Qiang Shengzhi, Ren Shuping, Wang Yuanqing, Wu Qinqin
| osapublishing.org
Abstract The light detection and ranging (LIDAR) full-waveform echo decomposition method based on empirical mode decomposition (EMD) and the local-Levenberg–Marquard (LM) algorithm is proposed in this paper. The proposed method can decompose the full-waveform echo into a series of components, each of which can be assumed as essentially Gaussian. The original full-waveform echo is decomposed into the intrinsic mode functions (IMFs) and a final residual by using the EMD first.
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