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首页> 外文期刊>Geoscience and Remote Sensing Letters, IEEE >First Demonstration of Agriculture Height Retrieval With PolInSAR Airborne Data
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First Demonstration of Agriculture Height Retrieval With PolInSAR Airborne Data

机译：使用PolInSAR机载数据首次演示农业高度检索

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摘要

A set of three quad-pol images acquired at the L-band in interferometric repeat-pass mode by the German Aerospace Center (DLR) with the Experimental SAR (E-SAR) system, in parallel with the AgriSAR2006 campaign, has been used to provide, for the first time with airborne data, a demonstration of the retrieval of vegetation height from agricultural crops by means of polarimetric SAR interferometry (PolInSAR)-based techniques. Despite the low frequency of the data, hence providing a weak response from the vegetation volume in contrast to the ground, accurate estimates of vegetation height at field level have been obtained over winter rape and maize fields. The same procedure does not yield valid estimates for wheat, barley, and sugar beet fields due to a mismatch with the physical model employed in the inversion and to the specific crop condition at the date of acquisition. These results show the value of the information provided by both interferometry and polarimetry for some agriculture monitoring practices.
机译：由德国航空航天中心（DLR）与实验性SAR（E-SAR）系统在干涉重复通过模式下在L波段采集的一组三个四极点图像与AgriSAR2006竞选活动并行使用。通过基于极化SAR干涉法（PolInSAR）的技术，首次提供了航空数据，展示了从农作物中检索植被高度的演示。尽管数据的频率较低，因此与地面相比，植被体积的响应较弱，但已获得了冬季油菜和玉米田在田间水平的精确植被高度估计。由于与反演中使用的物理模型以及采集时的特定农作物条件不匹配，相同的程序无法对小麦，大麦和甜菜田获得有效的估计。这些结果表明，干涉法和偏振法所提供的信息对于某些农业监测实践具有价值。

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