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Projects

January 2022 - May 2022

"Analysis of C Band radar observation from RELAMPAGO field campaign using signal processing techniques"

In this study involving radar remote sensing the objective is to understand the various aspects of C-band radar observations of convective storms that occurred in Cordoba which is located in central west Argentina from the RELAMPAGO field campaign using signal processing techniques. Both Doppler and polarimetric observations are used in spectral analysis for weather radar to represent polarimetric variables as a function of radial velocity. The properties of Doppler power spectrum as well as spectral polarimetric variables are analysed to derive insights about the microphysical and dynamical characteristics of precipitation systems.

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Figure: Various dual polarization radar physical quantities of convective storm using Range Height Indicator (RHI) detection mode at 160 degree azimuth angle. (a) Reflectivity, Z (dBZ). (b) Differential reflectivity, Z_DR (dB). (c) Unfolded velocity, V_r (m/s). (d) copolar correlation coefficient,  rho_hv. 

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Figure: Estimated spectral polarimetric variables, Doppler power spectrum (left), spectral differential reflectivity (middle) and co-polar coherency spectrum (right) at distance of 35 km from the radar. (upper) 3.5 km (lower) 4.0 km 

August 2021 - December 2021

"Polarimetric Signal Processing"

The objective of simulation study was to reconstruct the I/Q data using reverse signal processing and estimating the polarimetric variables. The distributed weather targets were modeled using a covariance matrix method and polarimetric variables estimated using Pulse Pair Processing. The data quality analysis was conducted using “RELAMPAGO CSU-CHIVO data” collected by CHIVO radar.

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Fig: Plot of radar basic Doppler products for RHI data

Fig: Plot of polarimetric variables for RHI scan.

Internships

August 2020 - May 2022

Scilab Text Book Companion (TBC), FOSSEE Internship, Indian Institute of Technology Bombay, India

The Textbook Companion Project (TBC) aims to port solved examples from standard textbooks using an open source software system, such as Scilab. As a part of internship coded 204 solved examples using Scilab.

  • Title of the book : Thermal Physics

  • Author name : S. Garg, R. Bansal And Ghosh

  • Work Available @ Scilab.in : [click here]

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