V-L decomposition of a novel full-waveform lidar system based on virtual instrument technique

doi:10.1088/1674-1056/24/10/104214

中国物理B ›› 2015, Vol. 24 ›› Issue (10): 104214-104214.doi: 10.1088/1674-1056/24/10/104214

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

V-L decomposition of a novel full-waveform lidar system based on virtual instrument technique

徐帆, 王元庆

School of Electronic Science and Engineering, Nanjing University, Nanjing 210046, China

收稿日期:2015-03-12 修回日期:2015-04-14 出版日期:2015-10-05 发布日期:2015-10-05
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 608320036).

V-L decomposition of a novel full-waveform lidar system based on virtual instrument technique

Xu Fan (徐帆), Wang Yuan-Qing (王元庆)

School of Electronic Science and Engineering, Nanjing University, Nanjing 210046, China

Received:2015-03-12 Revised:2015-04-14 Online:2015-10-05 Published:2015-10-05
Contact: Xu Fan, Wang Yuan-Qing E-mail:alextsui918@gmail.com;yqwang@nju.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 608320036).

摘要/Abstract

摘要： A novel three-dimensional (3D) imaging lidar system which is based on a virtual instrument technique is introduced in this paper. The main characteristics of the system include: the capability of modeling a 3D object in accordance with the actual one by connecting to a geographic information system (GIS), and building the scene for the lidar experiment including the simulation environment. The simulation environment consists of four parts: laser pulse, atmospheric transport, target interaction, and receiving unit. Besides, the system provides an interface for the on-site experiment. In order to process the full waveform, we adopt the combination of pulse accumulation and wavelet denoising for signal enhancement. We also propose an optimized algorithm for data decomposition: the V-L decomposition method, which combines Vondrak smoothing and laser-template based fitting. Compared with conventional Gaussian decomposition, the new method brings an improvement in both precision and resolution of data decomposition. After applying V-L decomposition to the lidar system, we present the 3D reconstructed model to demonstrate the decomposition method.

关键词: lidar system, virtual instrument, Vondrak smoothing, laser-template based fitting

Abstract: A novel three-dimensional (3D) imaging lidar system which is based on a virtual instrument technique is introduced in this paper. The main characteristics of the system include: the capability of modeling a 3D object in accordance with the actual one by connecting to a geographic information system (GIS), and building the scene for the lidar experiment including the simulation environment. The simulation environment consists of four parts: laser pulse, atmospheric transport, target interaction, and receiving unit. Besides, the system provides an interface for the on-site experiment. In order to process the full waveform, we adopt the combination of pulse accumulation and wavelet denoising for signal enhancement. We also propose an optimized algorithm for data decomposition: the V-L decomposition method, which combines Vondrak smoothing and laser-template based fitting. Compared with conventional Gaussian decomposition, the new method brings an improvement in both precision and resolution of data decomposition. After applying V-L decomposition to the lidar system, we present the 3D reconstructed model to demonstrate the decomposition method.

Key words: lidar system, virtual instrument, Vondrak smoothing, laser-template based fitting

中图分类号: (Remote sensing; LIDAR and adaptive systems)

42.68.Wt

42.68.Ay (Propagation, transmission, attenuation, and radiative transfer)

徐帆, 王元庆. V-L decomposition of a novel full-waveform lidar system based on virtual instrument technique[J]. 中国物理B, 2015, 24(10): 104214-104214.

Xu Fan (徐帆), Wang Yuan-Qing (王元庆). V-L decomposition of a novel full-waveform lidar system based on virtual instrument technique[J]. Chin. Phys. B, 2015, 24(10): 104214-104214.

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V-L decomposition of a novel full-waveform lidar system based on virtual instrument technique

V-L decomposition of a novel full-waveform lidar system based on virtual instrument technique

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