【摘要】：針對(duì)當(dāng)前植被反射與偏振特性研究不充分、植被電磁輻射傳輸過(guò)程解釋不詳細(xì)的問(wèn)題,使用東北師范大學(xué)實(shí)驗(yàn)室多角度測(cè)試平臺(tái)對(duì)不同類(lèi)型植被(菜豆樹(shù)與南洋杉)的高光譜信息、偏振信息及其多角度分布3個(gè)方面進(jìn)行測(cè)量,并結(jié)合植被雙向反射機(jī)制與偏振產(chǎn)生機(jī)制對(duì)測(cè)量結(jié)果進(jìn)行分析。研究表明,不同植被的反射與偏振信息都與波長(zhǎng)有關(guān),并表現(xiàn)出明顯的各向異性,其中反射比與偏振度呈現(xiàn)出相對(duì)變化特征。植被類(lèi)型對(duì)偏振與反射信息具有一定的影響,表現(xiàn)為平展光滑型闊葉植被產(chǎn)生的偏振信息遠(yuǎn)大于針葉產(chǎn)生的偏振信息。該研究有助于深入了解植被與電磁波輻射過(guò)程,同時(shí)也說(shuō)明雙向反射信息與偏振信息相結(jié)合可為植被遙感提供額外有效的輔助信息。
[Abstract]:In view of the insufficient research on the characteristics of vegetation reflection and polarization and the lack of detailed explanation of the electromagnetic radiation transfer process of vegetation at present, The hyperspectral information, polarization information and multi-angle distribution of different types of vegetation (Phaseolus vulgaris and Cunninghamia chinensis) were measured by using a multi-angle test platform in the laboratory of Northeast normal University. The measurement results are analyzed by combining the bidirectional reflection mechanism and polarization generation mechanism of vegetation. The results show that the reflection and polarization information of different vegetation are related to wavelength and show obvious anisotropy. The reflectance ratio and the degree of polarization show relative variation characteristics. The type of vegetation has a certain influence on polarization and reflection information, which shows that the polarization information generated by smooth broad-leaved vegetation is much larger than that produced by needles. This study is helpful to understand the process of vegetation and electromagnetic wave radiation, and it also shows that the combination of bidirectional reflection information and polarization information can provide additional and effective supplementary information for vegetation remote sensing.
【作者單位】： 東北師范大學(xué)地理科學(xué)學(xué)院;
【基金】：國(guó)家自然科學(xué)基金(41401379)
【分類(lèi)號(hào)】：Q948;TP79
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本文編號(hào)：2415902