Interpretation of Scattering Characteristics of Radar L and C-Channel Data
DOI:
https://doi.org/10.5564/jimdt.v4i1.2665Keywords:
Alos Palsar-2, Sentinel-1B, radar wavelength, signature, analysisAbstract
To define spectral knowledge of the features presented in the multisource remotely sensed datasets, in most cases, signature-based analyses are applied. The features are considered to be distinguishable if they are separable in a multidimensional feature space. The aim of this research is to conduct signature-based backscatter analyses using L and С-band Alos Palsar-2 and Sentinel-1B radar images and investigate the separability of the available land cover classes. As a test site, Ulz gol basin situated in the northern part of Dornot aimag has been selected, and 8 different land cover classes were chosen. The result of the backscatter analyses revealed that the selected land cover types in the study area could be somehow separable in different radar wavelengths.
Радарын L, С-Сувгийн Мэдээний Онцлог болон Сарнилын Тайлал
Хураангуй: Зайнаас тандсан олон эх сурвалжийн дүрс мэдээнд агуулагдаж байгаа янз бүрийн спектрийн мэдлэгийг тодорхойлохын тулд, ихэнх тохиолдолд биет, юмсын сигнатурт дүн шин- жилгээ хийх бөгөөд олон хэмжээст огторгуйд сигнатурууд саланги байх тохиолдолд дүрс мэдээн дээрх биес өөр хоорондоо илүү сайн ялгагддаг. Энэхүү судалгааны ажлын зорилго нь, радарын долгионы L ба С-сувгийн мужид хос туйлшралаар хүлээн авсан Alos Palsar-2 болон Sentinel-1B дагуулын мэдээг тус тус ашиглан, газрын бүрхэвчийн сигнатур дээр суурилсан сарнилын ме- ханизмын тайлал хийж, улмаар уг ангиуд өөр хоорондоо сарнилаараа хэрхэн ялгагдаж байгааг харуулахад оршино. Судалгааны загвар талбай болгон Дорнод аймгийн хойд хэсэгт орших Улз голын сав нутгийг сонгон авч, нийт 8 ангийг тодорхойлсон бөгөөд сарнилын тайллын дүнгээс харахад, ангиуд өөр хоорондоо тодорхой хэмжээнд ялгагдаж байлаа. Дүн шинжилгээнд, ENVI 5.2 программ хангамжийг ашигласан болно.
Түлхүүр үгс: Alos Palsar-2, Sentinel-1B, радарын долгион, сигнатур, дүн шинжилгээ
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