合成孔径雷达在农业监测中的应用和展望

Outlook and Application of the Synthetic Aperture Radar in Agriculture Monitoring

合成孔径雷达(SAR)技术具有全天时全天候的监测优势,且随着多频、多极化SAR技术的发展,在农业上取得了越来越广泛的应用。归纳了SAR技术在农业监测中的应用进展,主要包括SAR技术在农作物分类和面积提取、农业物理及生物参数反演、农作物物候监测、农业灾害监测等方面的应用;并揭示了SAR技术在农业监测上的潜力和局限性。

Synthetic aperture radar(SAR)has nearly all-weather and all-time monitoring capability.It has been widely applied in agriculture with the development of multi-frequency and multi-polarisation SAR technique.In this paper,the applications of SAR in agriculture had been mainly reviewed from the following aspects:the classification and area mapping of crops,the retrieval of physical and biological parameters in agriculture,the monitoring of the phenological stages of crops,and the agricultural damage monitoring.The potentials and limitations of SAR in the applications of agriculture were summarized in the conclusion section.