Ej. Rothwell et al., AN ADAPTIVE-WINDOW-WIDTH SHORT-TIME FOURIER-TRANSFORM FOR VISUALIZATION OF RADAR TARGET SUBSTRUCTURE RESONANCES, IEEE transactions on antennas and propagation, 46(9), 1998, pp. 1393-1395
A short-time Fourier transform with an adaptive window width is used t
o analyze the transient response of radar targets. The described algor
ithm allows the isolation and identification of substructure resonance
s as well as localized specular reflections and slowly building global
resonances.