摘要
波形激光雷达传感器所获取的遥感数据几乎可以提供后向散射信号的全部特征,除了距离观测值,需要通过进一步分析接收的脉冲获取更多关于地表实体的物理特性,因此,这些相关的物理特性成为研究地表覆盖的新领域。通过总结利用波形信号处理技术进行地表覆盖解译工作的研究进展,开展了南极查尔斯王子山脉地区地表覆盖分类工作。首先,描述了GLAS的数据结构;其次,总结了相关的信号处理技术;然后,从实际应用角度讨论了方法的可用性;最后,以南极查尔斯王子山脉地区为例,实践了基于ICESat GLAS完整波形信号处理技术的地表覆盖分类方法。
The remote sensing data acquired from waveform Li DAR sensors supply the complete profile of the backscattered signal.This characteristic of the signal becomes the new frontiers for the study of land cover because some physical properties of objects can also be derived through analysis of the return impulse. This paper reviews the key technologies in waveform signal processing for land cover interpretation. Firstly,it introduces the structure of GLAS data and then discusses the applied techniques for signal processing.Then it discusses the state of the art methods from the perspective of practical applications. Finally,taking the Prince Charles Mountains in Antarctica as the research area,it testifies the ICESat/GLAS waveform signal processing method for land cover classification.
出处
《测绘与空间地理信息》
2016年第4期8-12,共5页
Geomatics & Spatial Information Technology
基金
测绘地理信息公益性行业科研专项经费项目(201412009)
南北极环境综合考察与评估专项2014年度南极地区环境遥感考察专题(CHINARE2014-02-04)
极地测绘科学国家测绘地理信息局重点实验室开放课题经费(201205)资助
