42nd IIRS Outreach Programme on "Principles of Polarimetric SAR Remote Sensing and its Processing"
18th Feb – 1st March 2019
42nd IIRS Outreach Programme on "Principles of Polarimetric SAR Remote Sensing and its Processing" was organized by IIRS Dehradun at Dronacharya Group of Institutions, Greater Noida through CMS (Coordinator Management System) during 18th Feb – 1st March 2019.
18th February 2019
Mr. Shashi Kumar, Scientist/Engineer – SE, IIRS started the session with introductory lecture on the Overview of Synthetic Aperture Radar Remote Sensing. He said that with the technological advancements in geo-information sciences, remote sensing has become an effective method for detection and investigation of various factors. He explained how Radar Imaging through Synthetic Aperture Radar (SAR) systems has revolutionized and expanded the technology of Microwave Remote Sensing especially in thematic applications using different techniques like SAR Polarimetry (PolSAR), SAR Interferometry (InSAR), Persistent Scatterer Interferometric Synthetic Aperture Radar (PSInSAR) and Polarimetric SAR Interferometry (PolInSAR).
19th February 2019
Mr. Shashi Kumar delivered a lecture on Different types of SAR system, Imaging platforms and wavelength used in SAR remote sensing and Mode of acquisition. He described in detail the Monostatic SAR Systems, Bistatic Radar and its configuration in the terra SAR-X / F-SAR, Multistatic and different Ground-based SAR Sensor like as AES1, AIRSAR, ESAR and EMISAR etc. He also discussed L&S Band Airborne SAR and the Radar bands commonly used for Remote Sensing.
20th February 2019
Mr. Kumar delivered another lecture on Basic Concept of Polarimetric SAR Remote Sensing. He focused on the SAR and Radar Polarimetry and explained the mathematical relationship given by Stokes. He later explained Scattering Matrix for Quad-Pol Data and Lexicographic.
21st February 2019
Mr. Shashi Kumar gave a brief on the challenges in Polarimetric Decomposition Modelling based scattering retrieval of PolSAR data. He then explained SAR Polarimetry and polamiteric scattering models i.e Synthetic Aperture Radar Polarimetry, Freeman Decomposition Model, Four Component Decomposition Model etc. and decomposition results.
25th February 2019
While delivering a lecture on Hands-on practical exercise on PolSAR Data Processing, Mr.Kumar discussed different Softwares and Data Sets those are available freely on different platforms and other useful links.
27th February 2019
Dr. Hitendra Padalia, Scientist/Engineer – SF, Forestry and Ecology Department, IIRS Dehradun, delivered a lecture on Polarimetric SAR Remote Sensing for Forestry Applications. He started his lecture with the introduction on Forest response to microwave energy and discussed in detail about Penetration Depth & Frequency, Penetration Depth & Polarization and Penetration Depth & Incidence Angle. He also discussed Scattering Diversity of Forest Targets and Forest Cover Change, Forest Density Stratification and disturbances and also briefed about the Sampling, Mensuration and Forest Canopy Height. He concluded his session with the discussion on Forest Structure based on SAR tomography, estimation of Forest Biomass and future prospects.
28th February 2019
Dr. Sandeep Maithani, Scientist/Engineer-SF, IIRS Dehradun, delivered a lecture on PolSAR based classification for Urban Mapping. He also discussed the methodology and orientation angle correction for the decrease in volumetric scattering and enhancement of pixels showing. He concluded his lecture by demonstrating Separability Analysis of Polarimteric Decomposition Models, Accuracy Assessment TerraSAR-X (Quad Pol HSV Fused), TanDEM-X (Quad Pol HSV Fused) and TerraSAR-X (Dual Pol).
1st March 2019
The Outreach Program concluded on 1st March 2019 with a Panel Discussion for Coordinators.