激光雷达回波强度数据辐射特性分析

doi:10.7523/j.issn.2095-6134.2019.03.013

中国科学院大学学报 ›› 2019, Vol. 36 ›› Issue (3): 392-400.DOI: 10.7523/j.issn.2095-6134.2019.03.013

激光雷达回波强度数据辐射特性分析

杜松^1,2, 李晓辉¹, 刘照言¹, 陈育伟^1,3, 王震¹, 唐伶俐¹, 贺文静¹

1. 中国科学院光电研究院定量遥感信息技术重点实验室, 北京 100094;
2. 中国科学院大学, 北京 100049;
3. 芬兰地球空间研究所, 马萨拉 FI-02430

收稿日期:2018-02-13 修回日期:2018-04-12 发布日期:2019-05-15
通讯作者: 刘照言
基金资助:
科技部国际合作项目（2015DFA70930）、中国科学院国际合作项目（181811KYSB20130003）和国家自然科学基金（61771456）资助

Radiometric characteristics of the intensity data of laser scanner

DU Song^1,2, LI Xiaohui¹, LIU Zhaoyan¹, CHEN Yuwei^1,3, WANG Zhen¹, TANG Lingli¹, HE Wenjing¹

1. Key Laboratory of Quantitative Remote Sensing Information Technology, Academy of Opto-Electronics, Chinese Academy of Sciences, Beijing 100094, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Finnish Geospatial Research Institute, Masala FI-02430, Finland

Received:2018-02-13 Revised:2018-04-12 Published:2019-05-15

摘要/Abstract

摘要： 激光雷达回波强度数据记录表征地物目标辐射特性的信息。利用该数据进行地物目标提取以及遥感定量化应用，逐渐成为激光雷达技术领域的研究热点。从激光雷达辐射传输机理出发，构建具有明确物理意义的激光雷达回波强度数据辐射传输机理方程；基于该方程，系统地探讨和分析激光雷达回波强度数据的辐射特征和关键影响因素；利用搭建的激光雷达实验平台对激光雷达辐射特性进行验证和讨论。本研究为开展激光雷达辐射定标、地物分类和各种定量化应用提供必要的理论依据和技术支持。

关键词: 激光雷达, 回波强度, 辐射特性

Abstract: The intensity data of the echo record the information about the radiometric characteristics of the object and can be effectively used in the object extraction and other remote sensing quantitative applications. Therefore the study on radiometric characteristics of intensity data has become a new hot spot in the field of LiDAR. The radar equation is studied on the basis of the theoretical derivation of radiation transmission mechanism, and the radiation properties and key influences of intensity data are systematically discussed and analyzed. Finally, these theories are verified and discussed by using the experimental platform of LiDAR system. The results and conclusions provide the necessary theoretical basis and technical support for radiometric calibration, object classification, and other quantitative applications of the waveform data.

Key words: LiDAR, intensity, radiometric characteristics

中图分类号:

TP79

杜松, 李晓辉, 刘照言, 陈育伟, 王震, 唐伶俐, 贺文静. 激光雷达回波强度数据辐射特性分析[J]. 中国科学院大学学报, 2019, 36(3): 392-400.

DU Song, LI Xiaohui, LIU Zhaoyan, CHEN Yuwei, WANG Zhen, TANG Lingli, HE Wenjing. Radiometric characteristics of the intensity data of laser scanner[J]. , 2019, 36(3): 392-400.

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激光雷达回波强度数据辐射特性分析

Radiometric characteristics of the intensity data of laser scanner

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