Ghania Fatima2025-12-102025-07-23https://ir.iitd.ac.in/handle/123456789/7848enSolving optimizationSensingOptimization techniquesCovariance matrixSparsity constraintsNumerical simulationsBlock coordinate descentNon-convex optimization methods for enhanced performance for problems in graph signal processing, phase-retrieval and sensingThesis