Application of the reassignment of time-frequency distributions to Doppler radar tomography imaging of a rotating multi-point object

Abstract

Radar tomography allows to build a two-dimensional image from one-dimensional functions obtained from radar returns. In this paper the possibility of usage of the reassigned spectrogram as well as different reassigned forms of time-frequency distributions in the Doppler radar tomography imaging is evaluated. The image is obtained from a multi-component signal with time-frequency modulations resulting from rotation. The algorithm of imaging with high resolution is tested on simulated data.