Full-field mode shape estimation of a rotating structure subject to random excitation using a tracking continuously scanning laser Doppler vibrometer via a two-dimensional scan scheme

•A nonuniform rotating plate model is developed for its operational modal analysis.•A two-dimensional scan scheme is developed for full-field measurement.•A tracking continuous scanning laser Doppler vibrometer system is developed.•A demodulation method is used for processing measurement of a rotating structure.•Full-field mode shapes of a rotating fan blade with constant speeds were estimated.