合成孔径雷达在农作物长势监测中的应用

Application of Synthetic Aperture Radar in Crop Growth Monitoring

在农作物收获之前进行大范围作物生长状况评价,可以为早期估产提供依据,同时为田间管理提供即时信息。该研究结合合成孔径雷达(SAR)技术的发展,分别从基于SAR后向散射系数和极化特征2个方面,结合农作物长势参数反演,对SAR技术在农作物长势监测中的应用情况进行了研究,总结了目前采用SAR技术进行农作物长势监测中存在的问题,并对其未来研究方向进行了展望。

Crop growth monitoring plays a substantial role in delivering timely information on crop yield estimation and field management. With concomitant development of synthetic aperture radar （ SAR） technology, combined with inversion of crop growth parameters, the applica-tion of SAR technology in crop growth monitoring was studied from two aspects of backscattering coefficient and polarization characteristics based on SAR, the existing problems were summarized, the research direction in the future was forecasted.