Signal Constellations of a Retrodirective Array Phase ModulatorGregory A. Koo, MS Thesis 5 April 2011 |
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Greg Koo’s classic MS thesis on the use of retrodirective array phase modulator (RAPM) for microwave backscatter communications. Co-invented with Albert Lu, this method of RF signal transmission has been dubbed “Koo-Lu” modulation by our researchers.