1. A Time-Varying Subspace Method for Shape Estimation of a Flexible Spacecraft Membrane Open Access Author: Brownell, Matthew Title: A Time-Varying Subspace Method for Shape Estimation of a Flexible Spacecraft Membrane Graduate Program: Aerospace Engineering Keywords: subspacespacecraftflexiblesolarsolar powerERAreduced-order modelinganalytical modelingdynamicsstructuresspace structurelarge File: Download Brownell_MastersThesis_FINAL.pdf Committee Members: Amy Pritchett, Program Head/ChairPuneet Singla, Thesis Advisor/Co-AdvisorRobert G. Melton, Committee MemberGeorge A Lesieutre, Committee MemberRoshan Thomas Eapen, Committee MemberAndrew Sinclair, Special Signatory