雷达遥感技术在水稻识别中的研究进展

摘要

Due to its all-weather,all-time,high resolution and non-cloud interference characteristics,Synthetic Aperture Radar (SAR)techniques have unparalleled advantages for rice recognition in China.This article gives a review on the SAR techniques for rice recognition.It summarizes the development history of SAR,describes the parameters and characteristics of SAR sensors used for rice recognition,and analyzes the factors influencing backscattering coefficient based on the backscattering model of rice monitoring.This paper also reviews various methods for rice recognition based on SAR in domestic and abroad. Finally,the paper discusses the prospect in the related fields.%合成孔径雷达技术拥有全天时、全天候、高分辨率和不受云层干扰的特点，利用 SAR 在我国水稻种植区进行水稻识别拥有无可比拟的优势。该文主要对雷达遥感技术在水稻识别和监测中的应用情况进行了综述。首先总结了合成孔径雷达的发展历史，介绍了目前用于水稻识别的 SAR 传感器的参数和特点；介绍了水稻的后向散射特性，根据水稻的后向散射模型分析了影响其后向散射系数的因素；综述了国内外利用 SAR 进行水稻识别的各种方法，并对未来利用 SAR 监测水稻进行了展望。