1. On the Development of Modern Ionospheric Sensors Using Software-defined Radio Techniques Open Access Author: Hackett, Alexander Title: On the Development of Modern Ionospheric Sensors Using Software-defined Radio Techniques Graduate Program: Electrical Engineering Keywords: software-defined radiodigital radarradarSDRCIRIIRISGnuRadarUSRPPARISPISCO File: Download 1-Thesis_Hackett_Alexander.pdf Committee Members: Julio Urbina, Thesis Advisor/Co-Advisor