星载激光测高技术进展

Advances of spaceborne laser altimetry technology

星载激光(雷达)测高技术已经逐步成为全方位全球观测的技术手段之一,其高测量精度、全天时测量能力、高效三维测量的特点在许多科学领域都具有独特的优势。本文讨论当前两类星载激光测高技术的工作原理、数据处理方法,并探讨了星载激光测高数据在对地观测和深空观测科学研究中的代表性应用;最后展望了未来星载激光测高技术的发展趋势。期望本文对从事星载激光测高研究、开发和应用的同行们有所裨益。

Spaceborne laser altimetry technology has become one of the main technologies for all-round global observation.Its high accuracy,all-day capability,and efficient three-dimensional measurement constitute unique advantages for many scientific studies.This paper systematically discusses the working principles and data processing methods of two current spaceborne laser altimetry technologies.The description is also extended to representative applications of spaceborne laser altimetry data in earth and planetary sciences.Finally,the paper presents a brief prospect for future directions and developments of spaceborne laser altimetry.It is expected that this paper will be beneficial to colleagues and professionals who are engaged in research,development and applications of spaceborne laser altimetry technology.