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Aspects of Polarization for Earth Observation
Polarization is an important intrinsic feature of electromagnetic waves. In reflecting, transmitting, and scattering of electromagnetic waves, natural and human-made targets change the state of polarization of the incident wave, which relates to its electrical and geometrical properties. In the context of Earth observation (EO), we characterize the polarization aspects of the scattered wave using useful concepts of polarization algebra. In the radar community, matrix calculus is utilized to characterize scattering phenomena from diverse targets. The target coherency matrix formulation found extensive utility in describing polarization concepts. Different descriptors derived from suitable polarization algebra play a vital role in many EO applications.

Jul 25, 2022 09:00 PM in Pacific Time (US and Canada)

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Avik Bhattacharya
Professor at the Microwave Remote Sensing Lab @Indian Institute of Technology, Bombay (India)
Professor Bhattacharya is a Professor at the Microwave Remote Sensing Lab, Center of Studies in Resources Engineering, Indian Institute of Technology Bombay, India. His research interests are focussed on Imaging Radar Polarimetry, Biophysical & Geophysical Parameters Estimation from Radar Polarimetric Data, Polarimetric Image Classification and Change Detection. He is currently the Editor-in-Chief of the IEEE Geoscience and Remote Sensing Letters.